Patent US4898911A successfully refreshed from Google Patents.
US4898911A
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Resin composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1987-12-24
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Granted: 1990-02-06
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Expires: 2007-12-24
Abstract
Abstract A melt-blended resin composition useful as a modifier for improving the impact resistance of thermoplastic resins which comprises (a) a polymer containing at least one epoxy group per molecule and having a modulus of elasticity in bending of at most 104 kg/cm2, e.g. an alpha -olefin/glycidyl ester or ether copolymer, and (b) a copolymer of an alpha -olefin and an alpha , beta -unsaturated carboxylic acid wherein at least 5% by mole of the carboxyl groups are neutralized with an alkali metal.
Inventors
- 👤 Shunitsu Miyashita
- 👤 Kenji Mogami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:23
CPC Classifications
C; C08; C08G; C08G81/00; C08G81/02; C08G81/021; C08L; C08L23/00; C08L23/02; C08L23/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A melt-blended resin composition consisting essentially of: (a) 5 to 95% by weight of a resin containing at least one epoxy group per molecule and having a modulus of elasticity in bending measured according to ASTM D790 of at most 10 4 kg/cm 2 at room temperature, and (b) 95 to 5% by weight of a copolymer of an α- olefin and an α,β-unsaturated carboxylic acid wherein at least 5% by mole of the carboxyl groups are neutralized with an alkali metal and which has a modulus of elasticity in bending measured according to ASTM D790 of at most 10 4 kg/cm 2 at room temperature.
Claim 2
Dependent Claim
106 words
A melt-blended resin composition consisting essentially of: (a) 5 to 95% by weight of a resin containing at least one epoxy group per molecule and having a modulus of elasticity in bending measured according to ASTM D790 of at most 10 4 kg/cm 2 at room temperature, and (b) 95 to 5% by weight of a copolymer of an α- olefin and an α,β-unsaturated carboxylic acid wherein at least 5% by mole of the carboxyl groups are neutralized with an alkali metal and which has a modulus of elasticity in bending measured according to ASTM D790 of at most 10 4 kg/cm 2 at room temperature.
Claim 3
Dependent Claim
44 words
The composition of claim 1, wherein said epoxy-containing resin (a) is a resin having a group selected from the group consisting of glycidyl ether group, glycidyl ester group, glycidyl amino group and a group derived from a reaction of an N-heterocycle-containing compound and epichlorohydrin.
Claim 4
Dependent Claim
36 words
The composition of claim 1, wherein said epoxy-containing resin (a) is a copolymer of an α-olefin and 1 to 30% by weight of an α,β-unsaturated carboxylic acid glycidyl ester or a polymerizable double bond-containing glycidyl ether.
Claim 5
Dependent Claim
63 words
The composition of claim 1, wherein said epoxy-containing resin (a) is a member selected from the group consisting of an ethylene/glycidyl (meth)acrylate copolymer, an alkyl acrylate/glycidyl (meth)acrylate copolymer, an alkyl acrylate/allyl glycidyl ether copolymer, an ethylene/glycidyl (meth)acrylate/vinyl acetate copolymer, and a graft copolymer of 1 to 90% by weight of methyl (meth)acrylate with 99 to 10% by weight of an ethylene/glycidyl (meth)acrylate copolymer.
Claim 6
Dependent Claim
34 words
The composition of claim 1, wherein said copolymer (b) is a copolymer of an α-olefin, an α,β-unsaturated carboxylic acid and an alkyl acrylate or methacrylate having a C 1 to C 10 alkyl group.
Claim 7
Dependent Claim
13 words
The composition of claim 1, wherein said alkali metal is sodium or potassium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |