Patent US4603172A successfully refreshed from Google Patents.
US4603172A
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US
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Low molecular weight copolymer salts as dispersion aids in plastics
Assignee: Honeywell International Inc
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Filing: 1985-10-22
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Granted: 1986-07-29
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Expires: 2005-10-22
Abstract
Abstract A dispersion aid for polymers comprising a copolymer salt of a low molecular weight copolymer acid of an alpha-olefin and an alpha,beta-ethylenically unsaturated carboxylic acid, a composition containing the lubricant, and a method for processing polymers containing the dispersion aid.
Inventors
- 👤 Paul J. Albee
- 👤 Patricia E. Burdick
- 👤 Christopher J. Auger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44; C08L; C08L101/00
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
117 words
A composition comprising: a polymer selected from the group consisting of: polyolefins; styrene based polymers; polyamides; polyesters; polycarbonates; polyvinyl chloride; copolymers of acrylonitrile, butadiene, styrene; and phenolic resins; and up to 10 parts per hundred of the polymer of a dispersion aid which comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha,beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight between about 500 and about 6,000, the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and from 0.1 to 100 parts per hundred of the polymer of a dispersible material.
Claim 2
Dependent Claim
117 words
A composition comprising: a polymer selected from the group consisting of: polyolefins; styrene based polymers; polyamides; polyesters; polycarbonates; polyvinyl chloride; copolymers of acrylonitrile, butadiene, styrene; and phenolic resins; and up to 10 parts per hundred of the polymer of a dispersion aid which comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha,beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight between about 500 and about 6,000, the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and from 0.1 to 100 parts per hundred of the polymer of a dispersible material.
Claim 3
Dependent Claim
20 words
The composition as recited in claim 1 wherein the polymer is selected from a group consisting of polypropylene and polystyrene.
Claim 4
Dependent Claim
12 words
The composition as recited in claim 1 wherein the alpha-olefin is ethylene.
Claim 5
Dependent Claim
35 words
The composition as recited in claim 2 wherein the cation is of a metal selected from the group consisting of Groups IA, IIA, IIIA zinc and the transition elements of the Periodic Table of Elements.
Claim 6
Dependent Claim
25 words
The composition as recited in claim 4 wherein the cation is selected from the group consisting of sodium, potassium, magnesium, calcium, barium, zinc and aluminum.
Claim 7
Dependent Claim
34 words
The composition as recited in claim 5 wherein the cations are supplied in the form of cation containing material selected from the group consisting of metal: oxides, hydroxides, oxylates, acetates, bicarbonates, methoxides and nitrates.
Claim 8
Dependent Claim
32 words
The composition as recited in claim 6 wherein the cation containing materials are selected from the group consisting of sodium hydroxide, magnesium oxide, calcium hydroxide, calcium acetate, zinc acetate and aluminum hydroxide.
Claim 9
Dependent Claim
20 words
The composition as recited in claim 1 wherein the alpha,beta-ethylenically unsaturated carboxylic acid has between 3 and 6 carbon atoms.
Claim 10
Dependent Claim
16 words
The composition as recited in claim 8 wherein the alpha,beta-ethylenically unsaturated carboxylic acid is acrylic acid.
Claim 11
Dependent Claim
25 words
The composition as recited in claim 9 wherein the copolymer is ethylene and acrylic acid having an acid number between about 40 and about 160.
Claim 12
Dependent Claim
27 words
The composition as recited in claim 10 wherein the copolymer of ethylene and acrylic acid is from about 15% to about 60% neutralized with the metal cation.
Claim 13
Dependent Claim
27 words
The composition as recited in claim 11 wherein the copolymer of ethylene and acrylic acid is from about 25% to about 60% neutralized with the metal cation.
Claim 14
Dependent Claim
12 words
The composition as recited in claim 11 wherein the cation is calcium.
Claim 15
Dependent Claim
15 words
The composition as recited in claim 13 wherein the cation containing material is calcium hydroxide.
Claim 16
Dependent Claim
19 words
The composition as recited in claim 9 wherein the viscosity of the copolymer salt is greater than 800 cps.
Claim 17
Dependent Claim
22 words
The composition as recited in claim 9 wherein the molecular weight of the copolymer acid is from about 1,000 to about 6,000.
Claim 18
Dependent Claim
22 words
The composition as recited in claim 16 wherein the molecular weight of the copolymer acid is from about 1,000 to about 3,500.
Claim 19
Dependent Claim
43 words
The composition as recited in claim 8 wherein the polymer is polystyrene and there is from 0.1 to 4.0 parts of the dispersion aid per 100 parts of polystyrene, the dispersion aid having a viscosity from about 30,000 cps to about 50,000 cps.
Claim 20
Independent Claim
89 words
A method of processing polymers comprising the steps of: intimately mixing a dispersible material, the polymer and a dispersion aid, wherein the dispersion aid comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha-beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight of between about 500 and about 6000, the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and melt blending the mixture.
Claim 21
Independent Claim
89 words
A method of processing polymers comprising the steps of: intimately mixing a dispersible material, the polymer and a dispersion aid, wherein the dispersion aid comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha-beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight of between about 500 and about 6000, the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and melt blending the mixture.
Claim 22
Independent Claim
94 words
A method of processing polymers comprising the steps of: intimately mixing a dispersible material and a dispersion aid, wherein the dispersion aid comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha,beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight between about 500 and about 6,000 the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and melt blending the dispersible material and dispersion aid mixture with the polymer.
Claim 23
Independent Claim
94 words
A method of processing polymers comprising the steps of: intimately mixing a dispersible material and a dispersion aid, wherein the dispersion aid comprises a copolymer salt of a copolymer of an alpha-olefin and an alpha,beta-ethylenically unsaturated carboxylic acid, the copolymer acid having a number average molecular weight between about 500 and about 6,000 the copolymer acid being neutralized from 15 to 100% with at least one cation from the group consisting of metallic cations having a valence of 1 to 3; and melt blending the dispersible material and dispersion aid mixture with the polymer.
Claim 24
Dependent Claim
29 words
The method as recited in claim 20 further comprising the step of mixing the polymer and the mixture of the pigment and the dispersion aid prior to melt blending.
Claim 25
Dependent Claim
30 words
The method as recited in claim 20 wherein the mixture is melt blended in a temperature in the range from the melting point of the polymer up to 400° C.
Claim 26
Dependent Claim
12 words
The method as recited in claim 20 wherein the alpha-olefin is ethylene.
Claim 27
Dependent Claim
34 words
The method as recited in claim 23 wherein the cation is of a metal selected from the group consisting of Groups IA, IIA, IIIA and the transition elements of the Periodic Table of Elements.
Claim 28
Dependent Claim
25 words
The method as recited in claim 24 wherein the cation is selected from the group consisting of sodium, potassium, magnesium calcium, barium, zinc and aluminum.
Claim 29
Dependent Claim
32 words
The method as recited in claim 25 wherein the cation containing materials are selected from the group consisting of sodium hydroxide, magnesium oxide, calcium hydroxide, calcium acetate, zinc acetate and aluminum hydroxide.
Claim 30
Dependent Claim
20 words
The method as recited in claim 20 wherein the alpha,beta-ethylenically unsaturated carboxylic acid has between 3 and 6 carbon atoms.
Claim 31
Dependent Claim
31 words
The method as recited in claim 27 wherein the alpha,beta-ethylenically unsaturated carboxylic acid is the copolymer of ethylene and acrylic acid having an acid number between about 1 and about 180.
Claim 32
Dependent Claim
25 words
The method as recited in claim 28 wherein the copolymer of ethylene and acrylic acid has an acid number between about 40 and about 160.
Claim 33
Dependent Claim
12 words
The method as recited in claim 29 wherein the cation is calcium.
Claim 34
Dependent Claim
15 words
The method as recited in claim 30 wherein the cation supplying material is calcium hydroxide.
Claim 35
Dependent Claim
25 words
The method as recited in claim 28 wherein the Brookfield viscosity at 140° C. of the copolymer salt is from about 10,000 to 50,000 centerpoises.
Claim 36
Dependent Claim
35 words
The method as recited in claim 28 wherein the polymer is selected from the group consisting of: polyolefins; styrene based polymers; polyamides; polyesters; polyvinyl chloride; copolymers of acrylonitrile, butadiene, and styrene; polycarbonates and phenolic resins.
Claim 37
Dependent Claim
20 words
The method as recited in claim 33 wherein the polymer is selected from a group consisting of polypropylene and polystyrene.
Claim 38
Dependent Claim
22 words
The method as recited in claim 28 wherein the molecular weight of the copolymer acid is from about 1,000 to about 6,000.
Claim 39
Dependent Claim
22 words
The method as recited in claim 35 wherein the molecular weight of the copolymer acid is from about 1,000 to about 3,500.
Claim 40
Dependent Claim
21 words
The method as recited in claim 28 wherein the copolymer acid is from 15% to 60% neutralized with the metal cation.
Claim 41
Dependent Claim
21 words
The method as recited in claim 37 wherein the copolymer acid is from 25% to 50% neutralized with the metal cation.
Claim 42
Dependent Claim
19 words
The composition as recited in claim 1 wherein the composition has a fusion time of less than 45 seconds.
Claim 43
Dependent Claim
18 words
The composition as recited in claim 1 wherein the dispersible material is a finely divided dispersible inert material.
Claim 44
Dependent Claim
13 words
The composition as recited in claim 1 wherein the polymer is a polyamide.
Claim 45
Dependent Claim
24 words
The composition as recited in claim 40 wherein the inert material is selected from the class of pigments, lake dyes and coal tar colors.
Claim 46
Dependent Claim
32 words
The composition as recited in claim 1 wherein the dispersible material is selected from the group consisting of inorganic, organic, natural and synthetic pigments; lake dyes; fillers; flame retarders; antioxidants; and stabilizers.
Claim 47
Dependent Claim
18 words
The method as recited in claim 20 wherein the dispersible material is a finely divided dispersible inert material.
Claim 48
Dependent Claim
32 words
The method as recited in claim 20 wherein the dispersible material is selected from the group consisting of inorganic, organic, natural and synthetic pigments, lake dyes; fillers, flame retarders; antioxidants; and stabilizers.
Claim 49
Dependent Claim
23 words
The composition as recited in claim 1 wherein there is from 0.1 to 10 parts per hundred of polymer of the dispersion aid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |