US5004776A
Expired / Lapsed
US
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Stabilized chlorine-containing resin composition
Assignee: Westlake Akishima Co Ltd
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Filing: 1989-07-19
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Granted: 1991-04-02
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Expires: 2009-07-19
Abstract
Abstract A thermally stabilized chlorine-containing resin composition comprising a chlorine-containing resin and a stabilizer consisting essentially of (a) an over based alkaline earth metal carboxylate or phenolate complex, (b) zeolite, (c) calcium hydroxide and (d) a complex of at least one metal perchlorate selected from the group consisting of sodium, magnesium, calcium and barium perchlorates with at least one compound selected from the group consisting of polyhydric alcohols and their derivatives. The stabilizer consisting essentially of the above four components (a) to (d) exhibits excellent effects in the prevention of the discoloration and the deterioration in physical properties of the chlorine-containing resin, both accompanying the thermal degradation caused when the resin is subjected to thermoforming, particularly powder molding or exposed to a high temperature atmosphere for a long period of time.
Inventors
- 👤 Masahiko Tadenuma
- 👤 Tetsuhiro Miyagi
- 👤 Tadashi Miyazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:43
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08K; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
118 words
A thermally stabilized chlorinecontaining resin composition comprising a chlorine-containing resin and a stabilizer consisting essentially of (a) an overbased alkaline earth metal carboxylate or phenolate complex, (b) zeolite, (c) calcium hydroxide and (d) a complex obtained by reacting hydrates of at least one metal perchlorate Me(ClO 4 ) n in which n is 1 or 2 selected from the group consisting of NaClO 4 , Mg(ClO 4 ) 2 , Ca(ClO 4 ) 2 and Ba(ClO 4 ) 2 with at least one compound selected from the group consisting of aliphatic dihydric and trihydric alcohols and their lower alkyl, phenyl, and benzyl monoethers at a weight ratio of 10:90 to 70:30, the complex being liquid at ordinary temperature.
Claim 2
Dependent Claim
118 words
A thermally stabilized chlorinecontaining resin composition comprising a chlorine-containing resin and a stabilizer consisting essentially of (a) an overbased alkaline earth metal carboxylate or phenolate complex, (b) zeolite, (c) calcium hydroxide and (d) a complex obtained by reacting hydrates of at least one metal perchlorate Me(ClO 4 ) n in which n is 1 or 2 selected from the group consisting of NaClO 4 , Mg(ClO 4 ) 2 , Ca(ClO 4 ) 2 and Ba(ClO 4 ) 2 with at least one compound selected from the group consisting of aliphatic dihydric and trihydric alcohols and their lower alkyl, phenyl, and benzyl monoethers at a weight ratio of 10:90 to 70:30, the complex being liquid at ordinary temperature.
Claim 3
Dependent Claim
53 words
A composition according to claim 1, wherein the chlorine-containing resin is a vinyl chloride homopolymer, a copolymer of vinyl chloride and an ethylenically unsaturated monomer, a vinyl chloridevinyl acetate copolymer or a vinyl chloride-ethylenevinyl acetate terpolymer, the copolymers and the terpolymer having a bound vinyl chloride content of at least 60% by weight.
Claim 4
Dependent Claim
32 words
A composition according to claim 1, which further contains, as a blending polymer, at least one polymer selected from the group consisting of a methacrylate-butadiene-styrene terpolymer, an acrylonitrile-butadiene copolymer and a polyurethane.
Claim 5
Dependent Claim
30 words
A composition according to claim 1, wherein the chlorine-containing resin is a mixture of 100 parts by weight of a polyvinyl chloride and 20-120 parts by weight of a plasticizer.
Claim 6
Dependent Claim
53 words
A composition according to claim 1, wherein the component (a) of the stabilizer is overbased barium isodecanoate, overbased barium oleate, overbased barium linoleate, overbased calcium isodecanoate, overbased calcium oleate, overbased magnesium oleate, overbased barium dodecylphenolate carbonate, overbased barium octylphenolate carbonate, overbased calcium dodecylnonylphenolate carbonate, overbased calcium thiobisdodecylphenolate carbonate or overbased magnesium nonylphenolate carbonate.
Claim 7
Dependent Claim
31 words
A composition according to claim 1, wherein the component (a) of the stabilizer is overbased barium octylphenolate carbonate, overbased barium dodecylphenolate carbonate, overbased calcium dodecylnonylphenolate carbonate or overbased magnesium nonylphenolate carbonate.
Claim 8
Dependent Claim
33 words
A composition according to claim 1, wherein the component (a) of the stabilizer is overbased barium 2-ethylhexanoate, overbased barium oleate, overbased barium linoleate, overbased calcium isodecanoate, overbased calcium oleate or overbased magnesium oleate.
Claim 9
Dependent Claim
32 words
A composition according to claim 1, wherein the component (a) of the stabilizer is contained in an amount of 0.1-4 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 10
Dependent Claim
32 words
A composition according to claim 1, wherein the component (a) of the stabilizer is contained in an amount of 0.2-2 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 11
Dependent Claim
37 words
A composition according to claim 1, wherein the component (b) of the stabilizer is a synthetic A type zeolite represented by Na 2 O.Al 2 O 3 .xSiO 2 .yH 2 O (0.5 ≦x≦3 and 0.5 ≦y≦6).
Claim 12
Dependent Claim
33 words
A composition according to claim 1, wherein the component (b) of the stabilizer is a synthetic A type zeolite represented by Na 2 O.Al 2 O 3 . xSiO 2 .4.5H 2 O.
Claim 13
Dependent Claim
46 words
A composition according to claim 1, wherein the component (b) of the stabilizer is zeolite particles having a weight average particle diameter of 10 microns or less and contained in an amount of 0.1-5 parts by weight per 100 parts by weight of the chlorinecontaining resin.
Claim 14
Dependent Claim
32 words
A composition according to claim 12, wherein the component (b) of the stabilizer is contained in an amount of 0.5-2 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 15
Dependent Claim
32 words
A composition according to claim 1, wherein the component (c) of the stabilizer is contained in an amount of 0.5-8 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 16
Dependent Claim
49 words
A composition according to claim 1, wherein the component (c) of the stabilizer is in the form of particles having a weight average particle diameter of 10 microns or less and contained in an amount of 1-5 parts by weight per 100 parts by weight of the chlorinecontaining resin.
Claim 17
Dependent Claim
32 words
A composition according to claim 1, wherein said at least one compound is selected from the group consisting of ethylene glycol, ethylene glycol mono-C 1-4 alkyl ethers and ethylene glycol monophenyl ether.
Claim 18
Dependent Claim
28 words
A composition according to claim 1, where said at least one compound is selected from the group consisting of diethylene glycol and diethylene glycol mono-C 1-4 alkyl ethers.
Claim 19
Dependent Claim
28 words
A composition according to claim 1, wherein said at least one compound is selected from the group consisting of propylene glycol and propylene glycol mono-C 1-4 alkyl ethers.
Claim 20
Dependent Claim
28 words
A composition according to claim 1, wherein, said at least one compound is selected from the group consisting of triethylene glycol, polyethylene glycol, dipropylene glycol and tripropylene glycol.
Claim 21
Dependent Claim
19 words
A composition according to claim 1, wherein the weight ratio is from 20 : 80 to 55 : 45.
Claim 22
Dependent Claim
30 words
A composition according to claim 1, wherein the stabilizer component (d) is contained in an amount of 0.2-5 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 23
Dependent Claim
30 words
A composition according to claim 1, wherein the stabilizer component (d) is contained in an amount of 0.5-2 parts by weight per 100 parts by weight of the chlorine-containing resin.
Claim 24
Dependent Claim
29 words
A composition according to claim 1, which further comprises at least one metal soap selected from the group consisting of magnesium, calcium, barium and zinc salts of organic acids.
Claim 25
Dependent Claim
38 words
A composition according to claim 1, which further comprises at least one organic ester of phosphorous acid selected from the group consisting of trialkyl type phosphites, alkylaryl type phosphites, bisphenol A type phosphites and polyol ester type phosphites.
Claim 26
Dependent Claim
16 words
A composition according to claim 1, which further comprises a β-diketone compound or an epoxy compound.
Claim 27
Dependent Claim
66 words
A composition according to claim 1, wherein the component (d) of the stabilizer is a complex represented by q wherein Me(ClO 4 ) n is as defined in claim 1 and R is the residue of aliphatic dihydric or trihydric alcohols or their lower alkyl, phenyl or benzyl monoethers and p is an integer of 1 to 3, and q is an arbitrary number of 1-6.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |