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Halogen-containing thermoplastic resin composition

Assignee: Mitsubishi Chemical Corp
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Filing: 1989-05-09
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Granted: 1991-07-09
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Expires: 2009-05-09
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Abstract

Abstract This invention relates to a halogen-containing thermoplastic resin composition comprising 100 parts by weight of a halogen-containing termoplastic resin (A) and 1 to 100 parts by weight of a graft polymer (B) having a melt index of 1 to 15 g/10 min as determined at a temperature of 190 DEG C. under a load of 2.16 kg and a benzene-insoluble fraction content of not more than 30 percent by weight as obtainable by graft-polymerizing 100 parts by weight of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 50 to 90 percent by weight as a substrate with 5 to 50 parts by weight of at least one monomer which, when polymerized alone, gives a homopolymer with a glass transition temperature of 65 DEG to 150 DEG C. (b2). This resin composition has markedly improved long-run moldability.

Inventors

  • 👤 Minoru Fujita
  • 👤 Hiroshi Takida
  • 👤 Yoshiharu Nagao

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 03:27
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/003; C08L51/06

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 129 words
A halogen-containing thermoplastic resin composition comprising 100 parts by weight of a halogen-containing thermoplastic resin (A) and 1 to 100 parts by weight of a graft polymer (B) having a melt index of 1 to 15 g/10 min as determined at a temperature of 190° C. under a load of 2.16 kg and a benzene-insoluble fraction content of not more than 30 percent by weight as obtainable by graft-polymerizing 100 parts by weight of a suspension-polymerized ethylene-vinyl acetate copolymer having a vinyl acetate content of 50 to 90 percent by weight as a substrate (b1) with 5 to 50 parts by weight of at least one monomer which, when polymerized alone, gives a homopolymer with a glass transition temperature of 65° to 150° C. as a grafting component (b2).
Claim 2
Dependent Claim 129 words
A halogen-containing thermoplastic resin composition comprising 100 parts by weight of a halogen-containing thermoplastic resin (A) and 1 to 100 parts by weight of a graft polymer (B) having a melt index of 1 to 15 g/10 min as determined at a temperature of 190° C. under a load of 2.16 kg and a benzene-insoluble fraction content of not more than 30 percent by weight as obtainable by graft-polymerizing 100 parts by weight of a suspension-polymerized ethylene-vinyl acetate copolymer having a vinyl acetate content of 50 to 90 percent by weight as a substrate (b1) with 5 to 50 parts by weight of at least one monomer which, when polymerized alone, gives a homopolymer with a glass transition temperature of 65° to 150° C. as a grafting component (b2).
Claim 3
Dependent Claim 17 words
The resin composition of claim 1 wherein said halogen-containing thermoplastic resin (A) is a polyvinyl chloride resin.

References Cited (Backward Citations)

US3968184A Cited
JPS5430699A Cited
JPS6116949A Cited
JPS62127334A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-07-08 1995-01-07 1995-07-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-07-08 1999-01-07 1999-07-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-07-08 2003-01-07 2003-07-09 $7700.00 Window Closed / Lapsed

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