US3878265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blend of polyvinyl resin with hydroxy alkyl acrylate-containing graft copolymers
Assignee: Sumika Polycarbonate Ltd
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Filing: 1972-07-25
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Granted: 1975-04-15
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Expires: 1992-07-25
Abstract
Abstract A thermoplastic resin composition of high impact strength and excellent transparency which comprises 99 to 20 parts by weight of a vinyl chloride resin having not less than 50 % by weight of vinyl chloride as the main constituent and 1 to 80 parts by weight of a graft copolymer blended therewith, the graft copolymer comprising 20 to 80 % by weight of one or more conjugated diolefinic polymers having not less than 50 % by weight of one or more conjugated diolefinic monomers as the main constituent and 80 to 20 % by weight of monomers graft polymerized thereon, the monomers comprising 0.5 to 50 % by weight of at least one of polymerizable carboxylic hydroxyalkyl ester monomers and polymerizable acrylic ester monomers, 9.5 to 99.5 % by weight of one or more polymerizable methacrylic ester monomers and 30 to 65 % by weight of one of more polymerizable aromatic vinyl monomers.
Inventors
- 👤 Takeshi Shimamura
- 👤 Tanoshi Yamagoshi
- 👤 Minoru Terakawa
- 👤 Yoshiaki Nishikubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F; C08F279/00; C08F279/02; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
131 words
A THERMOPLASTIC RESIN COMPOSITION WHICH COMPRISES 99 TO 20 PARTS BY WEIGHT OF A VINYL CHLRIDE RESIN HAVING NOT LESS THEN 50% BY WEIGHT OF VINYL CHLORIDE AS THE MAIN CONSTITUENT AND 1 TO 80 PARTS BY WEIGHT OF A GRAFT COPOLYMER WHICH COMPRISES 20 TO 80% BY WEIGHT OF ONE OR MORE CONJUGATED DIOLEFINIC POLYMERS HAVING NOT LESS THAN 50% BY WEIGHT OF ONE OR MORE CONJUGATED DIOLEFINIC MONOMERS AS THE MAIN CONSTITUENT AND 80 TO 20% BY WEIGHT OF MONOMERS GRAFT POLYMERIZED THEREON, THE MONOMERS COMPRISING 0.5 TO 50% BY WEIGHT OF AT LEAST ONE POLYMERIZABLE CARBOXYLIC HYDROXY(LOWER) ALKYL ESTER MONOMER, 9.5 TO 69.5% BY WEIGHT OF ONE OR MORE POLYMERIZABLE LOWER ALKYL METHACRYLATE MONOMERS AND 30 TO 65% BY WEIGHT OF ONE OR MORE POLYMERIZABLE AROMATIC VINYL MONOMERS.
Claim 2
Dependent Claim
131 words
A THERMOPLASTIC RESIN COMPOSITION WHICH COMPRISES 99 TO 20 PARTS BY WEIGHT OF A VINYL CHLRIDE RESIN HAVING NOT LESS THEN 50% BY WEIGHT OF VINYL CHLORIDE AS THE MAIN CONSTITUENT AND 1 TO 80 PARTS BY WEIGHT OF A GRAFT COPOLYMER WHICH COMPRISES 20 TO 80% BY WEIGHT OF ONE OR MORE CONJUGATED DIOLEFINIC POLYMERS HAVING NOT LESS THAN 50% BY WEIGHT OF ONE OR MORE CONJUGATED DIOLEFINIC MONOMERS AS THE MAIN CONSTITUENT AND 80 TO 20% BY WEIGHT OF MONOMERS GRAFT POLYMERIZED THEREON, THE MONOMERS COMPRISING 0.5 TO 50% BY WEIGHT OF AT LEAST ONE POLYMERIZABLE CARBOXYLIC HYDROXY(LOWER) ALKYL ESTER MONOMER, 9.5 TO 69.5% BY WEIGHT OF ONE OR MORE POLYMERIZABLE LOWER ALKYL METHACRYLATE MONOMERS AND 30 TO 65% BY WEIGHT OF ONE OR MORE POLYMERIZABLE AROMATIC VINYL MONOMERS.
Claim 3
Dependent Claim
16 words
The resin composition according to claim 1, wherein the conjugated diolefinic polymer is a butadiene-styrene copolymer.
Claim 4
Dependent Claim
31 words
The resin composition according to claim 2, wherein the butadiene-styrene copolymer is constituted with 90 to 60 % by weight of butadiene and 10 to 40 % by weight of styrene.
Claim 5
Dependent Claim
67 words
The resin composition according to claim 1, wherein the conjugated diolefinic polymer is a butadiene-styrene copolymer constituted with 90 to 60 % by weight of butadiene and 10 to 40 % by weight of styrene and the monomers comprise 0.5 to 50 % by weight of hydroxy(lower)alkyl acrylate, 9.5 to 69.5 % by weight of lower alkyl methacrylate and 30 to 65 % by weight of styrene.
Claim 6
Dependent Claim
67 words
The resin composition according to claim 1, wherein the conjugated diolefinic polymer is butadiene-styrene copolymer constituted with 90 to 60 % by weight of butadiene and 10 to 40 % by weight of styrene and the monomers consist essentially of 0.5 to 50 % by weight of 2-hydroxyethyl acrylate, 9.5 to 69.5 % by weight of methyl methacrylate and 30 to 65 % by weight of styrene.
Claim 7
Dependent Claim
66 words
The resin composition according to claim 1, wherein said graft copolymer consists essentially of said one or more conjugated diolefinic polymers and said monomers graft polymerized thereon, the graft copolymerized monomers consisting essentially of 0.5 to 50 % by weight of carboxylic hydroxy(lower)alkyl ester, 9.5 to 69.5 % by weight of lower alkyl methacrylate and 30 to 65 % by weight of polymerizable aromatic vinyl monomer.
Claim 8
Dependent Claim
43 words
The resin composition according to claim 6, wherein the graft copolymerized monomers consist of 0.5 to 50 % by weight of carboxylic hydroxy(lower)alkyl ester, 9.5 to 69.5 % by weight of lower alkyl methacrylate and 30 to 65 % by weight of styrene.
Claim 9
Dependent Claim
158 words
A thermoplastic resin composition which comprises 99 to 20 parts by weight of a vinyl chloride resin having not less than 50% by weight of vinyl chloride as the main constituent and 1 to 80 parts by weight of a graft copolymer which comprises 20 to 80% by weight of one or more conjugated diolefinic polymers having not less than 50% by weight of one or more conjugated diolefinic monomers as the main constituent and 80 to 20% by weight of monomers graft copolymerized thereon, the monomers comprising 0.5 to 50 % by weight of a mixture of polymerizable carboxylic hydroxy(lower)alkyl ester monomers and polymerizable lower alkyl acrylate monomers, the amount of alkyl acrylate monomers in said mixture being about twice the amount of the carboxylic hydroxy(lower)alkyl ester monomers, 9.5 to 69.5 % by weight of one or more polymerizable lower alkyl methacrylate monomers and 30 to 65% by weight of one or more polymerizable aromatic vinyl monomers.
Claim 10
Dependent Claim
158 words
A thermoplastic resin composition which comprises 99 to 20 parts by weight of a vinyl chloride resin having not less than 50% by weight of vinyl chloride as the main constituent and 1 to 80 parts by weight of a graft copolymer which comprises 20 to 80% by weight of one or more conjugated diolefinic polymers having not less than 50% by weight of one or more conjugated diolefinic monomers as the main constituent and 80 to 20% by weight of monomers graft copolymerized thereon, the monomers comprising 0.5 to 50 % by weight of a mixture of polymerizable carboxylic hydroxy(lower)alkyl ester monomers and polymerizable lower alkyl acrylate monomers, the amount of alkyl acrylate monomers in said mixture being about twice the amount of the carboxylic hydroxy(lower)alkyl ester monomers, 9.5 to 69.5 % by weight of one or more polymerizable lower alkyl methacrylate monomers and 30 to 65% by weight of one or more polymerizable aromatic vinyl monomers.
Claim 11
Dependent Claim
32 words
The composition according to claim 1, wherein the monomers further comprise at least one monomer selected from the group consisting of acrylonitrile, methacrylonitrile, vinyl acetate, vinyl chloride, vinylidene chloride and vinyl ether.
Claim 12
Dependent Claim
31 words
The resin compositioN according to claim 1, wherein the ratio of the vinyl chloride resin to the graft copolymer in said composition varies between 70 : 30 to 92 : 8.
Claim 13
Dependent Claim
32 words
The resin composition according to claim 1, wherein the graft polymer is selected from the group consisting of butadiene-styrene copolymer, butadiene-acrylonitrile copolymer, butadiene-styrene-acrylonitrile copolymer, butadiene-methylacrylate copolymer, butadiene-styrene-vinyl chloride copolymer and mixtures thereof.
Claim 14
Dependent Claim
28 words
The resin composition according to claim 1, wherein the monomers graft polymerized on the conjugated diolefinic polymers represent 35 to 65 % by weight of the graft copolymer.
Claim 15
Dependent Claim
88 words
The resin composition according to claim 1, wherein said graft copolymer consists essentially of said one or more conjugated diolefinic polymers and said monomers graft copolymerized thereon, the graft copolymerized monomers consisting essentially of 0.5 to 50 % by weight of carboxylic hydroxy(lower)alkyl ester, 9.5 to 69.5 % by weight of lower alkyl methacrylate, 30 to 65 % by weight of polymerizable aromatic vinyl monomer, and at least one additional monomer selected from the group consisting of acrylonitrile, methacrylonitrile, vinyl acetate, vinyl chloride, vinylidene chloride and vinyl ether.
Claim 16
Dependent Claim
51 words
The resin composition of claim 1, wherein said graft copolymerized monomers include as an additional monomer polymerizable lower alkyl acrylate, the combined amounts of said polymerizable carboxylic hyroxy(lower)alkyl ester monomer and polymerizable lower alkyl acrylate monomer being no more than 50% by weight based on the weight of the graft comonomers.
References Cited (Backward Citations)
US3401213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |