EP0159689A2
Expired / Lapsed
EP
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Vinyl chloride polymer resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1985-04-22
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Granted: —
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Expires: 2005-04-22
Abstract
Abstract A vinyl chloride polymer resin composition having excellent processability and flowability is comprised of (A) 100 weight parts of a vinyl chloride polymer composition comprising 5 to 100 weight % of a vinyl chloride polymer having an average polymerization degree of 300 to 700 and 95 to 0 weight % of a vinyl chloride polymer having an average molecular weight higher than 700, and (B) 0.1 to 30 weight parts of a methyl methacrylate polymer comprised of at least 40 weight % of methyl methacrylate and having a reduced viscosity (ηsp/C) of 0.1 to 2ℓ/g.
Inventors
- 👤 Kenji Okano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:43
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/04; C08L33/06; C08L33/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A vinyl chloride polymer resin composition having excellent processability and flowability, which comprises (A) 100 parts by weight of a vinyl chloride polymer composition comprising 5 to 100% by weight of a vinyl chloride polymer comprised of at least 80% by weight of vinyl chloride units and having an average polymerization degree of 300 to 700 and 95 to 0% by weight of vinyl chloride polymer comprised of at least 80% by weight of vinyl chloride units and having an average polymerization degree higher than 700, and (B) 0.1 to 30 parts by weight of a methyl methacrylate polymer comprised of at least 40% by weight of methyl methacrylate units and having a reduced viscosity (nsp/C) of 0.1 to 2 L/g as measured at 25°C with respect to a solution of 0.1 g of the polymer dissolved in 100 ml of chloroform.
Claim 2
Dependent Claim
142 words
A vinyl chloride polymer resin composition having excellent processability and flowability, which comprises (A) 100 parts by weight of a vinyl chloride polymer composition comprising 5 to 100% by weight of a vinyl chloride polymer comprised of at least 80% by weight of vinyl chloride units and having an average polymerization degree of 300 to 700 and 95 to 0% by weight of vinyl chloride polymer comprised of at least 80% by weight of vinyl chloride units and having an average polymerization degree higher than 700, and (B) 0.1 to 30 parts by weight of a methyl methacrylate polymer comprised of at least 40% by weight of methyl methacrylate units and having a reduced viscosity (nsp/C) of 0.1 to 2 L/g as measured at 25°C with respect to a solution of 0.1 g of the polymer dissolved in 100 ml of chloroform.
Claim 3
Dependent Claim
33 words
A vinyl chloride polymer resin composition according to claim 1 wherein the vinyl chloride polymer composition (A) is comprised of a vinyl chloride homopolymer having an average polymerization degree of 400 to 500.
Claim 4
Dependent Claim
59 words
A vinyl chloride polymer resin composition according to claim 1 wherein the vinyl chloride polymer composition (A) is comprised of 20 to 80% by weight of a vinyl chloride homopolymer having an average polymerization degree of 400 to 500 and 80 to 20% by weight of a vinyl chloride homopolymer having an average polymerization degree of 800 to 1000.
Claim 5
Dependent Claim
42 words
A vinyl chloride polymer resin composition according to claim 1 wherein the methyl methacrylate polymer is comprised of 70 to 95% by weight of methyl methacrylate units and 5 to 30% by weight of units derived from ethyl acrylate or butyl acrylate.
Claim 6
Dependent Claim
25 words
A vinyl chloride polymer resin composition according to claim 1 wherein the methyl methacrylate polymer has a reduced viscosity (nsp/C) of 0.3 to 0.4 1/g.
Claim 7
Dependent Claim
37 words
A vinyl chloride polymer resin composition according to claim 1 wherein the amount of the methyl methacrylate polymer is 1 to 10% by weight based on 100 parts by weight of the vinyl chloride polymer composition (A).
References Cited (Backward Citations)
No citation records indexed.
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