Patent EP0348200A2 successfully refreshed from Google Patents.
EP0348200A2
Expired / Lapsed
EP
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Modified ethylene copolymers for use adhesives
Assignee: ExxonMobil Chemical Patents Inc
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Filing: 1989-06-22
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Granted: —
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Expires: 2009-06-22
Abstract
Abstract An ethylene copolymer having a polar copolymer content of from 3 to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and nil side chain branching caused by incorporation of chain transfer agent into the backbone of the copolymer; and a hot melt composition containing the ethylene copolymer and a tackifier. The ethylene copolymer generally contains alaphatic side chain branching of less than 10 units per 1,000 backbone carbon atoms. The polymers have improved tensil and hardness properties as well as improved elongation modulus.
Inventors
- 👤 Joseph Dominic Domine
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 09:17
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
47 words
A composition comprising: an ethylene copolymer having a polar comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and nil side chain branching caused by incorporation of chain transfer agent into the backbone of the copolymer.
Claim 2
Dependent Claim
47 words
A composition comprising: an ethylene copolymer having a polar comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and nil side chain branching caused by incorporation of chain transfer agent into the backbone of the copolymer.
Claim 3
Dependent Claim
20 words
A composition according to claim 1 wherein the melt index is above 5, preferably above 50 and especially above 100.
Claim 4
Dependent Claim
38 words
A composition according to claim 1 or claim 2, wherein said polar comonomer is selected from the group consisting of vinyl acetate, vinyl formate, methyl acrylate, methyl methacrylate, ethyl (meth)acrylate, (iso) butyl (meth)acrylate, acrylic acid and methacrylic acid.
Claim 5
Dependent Claim
34 words
A composition according to any of the preceding claims wherein said comonomer is present from in an amount of 15% to 40% by weight, preferably in an amount from 25% to 35% by weight.
Claim 6
Dependent Claim
44 words
A composition comprising: an ethylene copolymer having a polar comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and an aliphatic side chain branching less than 10 units per 1,000 backbone carbon atoms.
Claim 7
Dependent Claim
44 words
A composition comprising: an ethylene copolymer having a polar comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and an aliphatic side chain branching less than 10 units per 1,000 backbone carbon atoms.
Claim 8
Dependent Claim
29 words
A composition according to claim 5 wherein the branching is less then 8 units per 1000 backbone carbon atoms, preferably less than 6 units per 1,000 backbone carbon atoms.
Claim 9
Dependent Claim
27 words
A composition according to claim 5 or claim 6, wherein said comonomer content is from 15% to 40% by weight, preferably from 25% to 35% by weight.
Claim 10
Dependent Claim
27 words
A composition according to any of claims 5 to 7, wherein said melt index is above 50, preferably above 100 and/or wherein said comonomer is vinyl acetate.
Claim 11
Dependent Claim
58 words
A hot melt composition comprising: a base polymer component and a tackifier, in which said base polymer component comprises an ethylene polar comonomer copolymer having a comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and nil side chain branching caused by incorporation of chain transfer agent.
Claim 12
Dependent Claim
58 words
A hot melt composition comprising: a base polymer component and a tackifier, in which said base polymer component comprises an ethylene polar comonomer copolymer having a comonomer content of from 3% to 50% by weight (based on the copolymer), a melt index from 1 to 10,000 and nil side chain branching caused by incorporation of chain transfer agent.
Claim 13
Dependent Claim
44 words
A hot melt composition comprising: a tackifier and an ethylene copolymer having a polar comonomer content of 3% to 50% by weight, a melt index from 1 to 10,000 and an aliphatic side chain branching less than 10 units per 1,000 backbone carbon atoms.
Claim 14
Dependent Claim
44 words
A hot melt composition comprising: a tackifier and an ethylene copolymer having a polar comonomer content of 3% to 50% by weight, a melt index from 1 to 10,000 and an aliphatic side chain branching less than 10 units per 1,000 backbone carbon atoms.
References Cited (Backward Citations)
No citation records indexed.
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