Patent US2878872A successfully refreshed from Google Patents.
US4454302A
Expired / Lapsed
US
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Polyester resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1982-08-25
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Granted: 1984-06-12
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Expires: 2002-08-25
Abstract
Abstract A polyester resin composition comprising: (a) 100 parts by weight of a copolymerized polyester resin a with a halogen content of 3 to 15% by weight prepared by copolymerizing terephthalic acid or an ester-forming derivative thereof; an alkylene glycol having 2 to 10 carbon atoms or an ester-forming derivative thereof; and a halogen-containing aromatic diol represented by the general formula: ##STR1## wherein R represents an alkylene of 2 to 4 carbon atoms, X represents a halogen atom, 1 and m each represents an integer of 1 to 4 and p and q each represents an integer of 1 to 10, and (b) 0.1 to 10 parts by weight of an acrylic resin b with a halogen content of not less than 10% by weight prepared by polymerizing a benzyl acrylate or benzyl methacrylate represented by the general formula: ##STR2## wherein Y represents a halogen atom, n represents, an integer of 1 to 5 and Z represents hydrogen or methyl.
Inventors
- 👤 Yasuhiro Ohmura
- 👤 Seiichiro Maruyama
- 👤 Shigeru Shigemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6826; C08L; C08L67/00; C08L67/02; C08L67/025
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
157 words
A polyester resin composition comprising: (a) 100 parts by weight of a copolymerized polyester resin a with a halogen content of 3 to 15% by weight prepared by copolymerizing terephthalic acid or an ester-forming derivative thereof; an alkylene glycol having 2 to 10 carbon atoms or an ester-forming derivative thereof; and a halogen-containing aromatic diol represented by the formula: ##STR8## wherein R represents an alkylene of 2 to 4 carbon atoms, X represents a halogen atom, l and m each represents an integer of 1 to 4 and p and q each represents an integer of 1 to 10, and (b) 0.1 to 10 parts by weight of an acrylic resin b with a halogen content of not less than 10% by weight prepared by polymerizing a benzyl acrylate or benzyl methacrylate represented by the formula: ##STR9## wherein Y represents a halogen atom, n represents an integer of 1 to 5 and Z represents hydrogen or methyl.
Claim 2
Dependent Claim
157 words
A polyester resin composition comprising: (a) 100 parts by weight of a copolymerized polyester resin a with a halogen content of 3 to 15% by weight prepared by copolymerizing terephthalic acid or an ester-forming derivative thereof; an alkylene glycol having 2 to 10 carbon atoms or an ester-forming derivative thereof; and a halogen-containing aromatic diol represented by the formula: ##STR8## wherein R represents an alkylene of 2 to 4 carbon atoms, X represents a halogen atom, l and m each represents an integer of 1 to 4 and p and q each represents an integer of 1 to 10, and (b) 0.1 to 10 parts by weight of an acrylic resin b with a halogen content of not less than 10% by weight prepared by polymerizing a benzyl acrylate or benzyl methacrylate represented by the formula: ##STR9## wherein Y represents a halogen atom, n represents an integer of 1 to 5 and Z represents hydrogen or methyl.
Claim 3
Dependent Claim
39 words
The polyester resin composition of claim 1 wherein the amount of the acrylic resin b is in the range of 0.5 to 5 parts by weight based on 100 parts by weight of the copolymerized polyester resin a .
Claim 4
Dependent Claim
37 words
The polyester resin composition of claim 1 wherein the total halogen content in the polyester resin composition is in the range of 3 to 15 parts by weight based on 100 parts by weight of the composition.
Claim 5
Dependent Claim
26 words
The polyester resin composition of claim 1 wherein the halogen content in the copolymerized polyester resin is in the range of 5 to 10% by weight.
Claim 6
Dependent Claim
22 words
The polyester resin composition of claim 1 wherein the halogen content in the acrylic resin is not less than 30% by weight.
Claim 7
Dependent Claim
25 words
The polyester resin composition of claim 5 wherein the halogen content in the acrylic resin is in the range of 50 to 72% by weight.
Claim 8
Dependent Claim
17 words
The polyester resin composition of claim 1 wherein the ester-forming derivative of terephthalic acid is dimethyl terephthalate.
Claim 9
Dependent Claim
13 words
The polyester resin composition of claim 1 wherein the alkylene glycol is 1,4-butanediol.
Claim 10
Dependent Claim
27 words
The polyester resin composition of claim 1 wherein R is ##STR10## X is bromine or chlorine; p and q each is an integer of 1 to 4.
Claim 11
Dependent Claim
13 words
The polyester composition of claim 1 wherein the halogen-containing aromatic diol is 2,2-bis[4-(2-hydroxyethoxy)-3,5-dibromophenyl]propane.
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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |