US4032594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric stabilizers for polyvinyl chloride resin
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1975-06-10
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Granted: 1977-06-28
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Expires: 1995-06-10
Abstract
Abstract A polyvinyl chloride composition having superior processing and thermal stability properties is prepared by blending with the polyvinyl chloride a copolymer of an α-olefin and an unsaturated epoxy monomer, or a terpolymer of an α-olefin, an unsaturated epoxy monomer and an epoxy-free monomer, such as an acrylate ester.
Inventors
- 👤 Joseph Serratore
- 👤 William L. Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:03
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
A polyvinyl chloride composition comprising (a) about 1 to 50 parts per 100 parts of polyvinyl chloride resin of a graft terpolymer of ethylene, propylene and an unsaturated epoxy monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, vinyl glycidyl phthalate and allyl glycidyl phthalate and wherein the unsaturated epoxy monomer is grafted onto an ethylene/propylene polymer backbone; and (b) a polyvinyl chloride resin, wherein said composition has improved thermal stability and a glass transition temperature equal to or greater than the glass transition temperature of the polyvinyl chloride resin.
Claim 2
Dependent Claim
95 words
A polyvinyl chloride composition comprising (a) about 1 to 50 parts per 100 parts of polyvinyl chloride resin of a graft terpolymer of ethylene, propylene and an unsaturated epoxy monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, vinyl glycidyl phthalate and allyl glycidyl phthalate and wherein the unsaturated epoxy monomer is grafted onto an ethylene/propylene polymer backbone; and (b) a polyvinyl chloride resin, wherein said composition has improved thermal stability and a glass transition temperature equal to or greater than the glass transition temperature of the polyvinyl chloride resin.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein about 2 to about 20 parts of copolymer based on 100 parts of polyvinyl chloride resin is used.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the unsaturated epoxy monomer is glycidyl acrylate.
Claim 5
Dependent Claim
83 words
A polyvinyl chloride composition comprising: (a) about 1 to 50 parts per 100 parts of polyvinyl chloride resin of a copolymer comprised of polypropylene having grafted thereon an unsaturated epoxy monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, vinyl glycidyl phthalate and allyl glycidyl phthalate; and (b) a polyvinyl chloride resin, wherein said composition has improved thermal stability and a glass transition temperature equal to or greater than the glass transition temperature of the polyvinyl chloride resin.
Claim 6
Dependent Claim
83 words
A polyvinyl chloride composition comprising: (a) about 1 to 50 parts per 100 parts of polyvinyl chloride resin of a copolymer comprised of polypropylene having grafted thereon an unsaturated epoxy monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, vinyl glycidyl phthalate and allyl glycidyl phthalate; and (b) a polyvinyl chloride resin, wherein said composition has improved thermal stability and a glass transition temperature equal to or greater than the glass transition temperature of the polyvinyl chloride resin.
Claim 7
Dependent Claim
23 words
The composition of claim 4 wherein about 2 to 20 parts of copolymer based on 100 parts of polyvinyl chloride resin is used.
Claim 8
Dependent Claim
13 words
The composition of claim 4 wherein the unsaturated epoxy monomer is glycidyl acrylate.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |