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US4052481A Expired / Lapsed US ⏱️ 0.0 years remaining

Resin composition and a process for preparing same

Assignee: Unitika Ltd
•
Filing: 1976-10-14
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Granted: 1977-10-04
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Expires: 1996-10-14
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Abstract

Abstract A resin composition comprising (A) an aromatic copolyester comprising the reaction product in about equimolar amounts of (1) terephthalic acid and/or the functional derivatives thereof, isophthalic acid and/or the functional derivatives thereof and (2) a bisphenol and/or the functional derivatives thereof, (B) a polyamide, and (C) a polyalkylene phenylene ester or a polyalkylene phenylene ester ether, and a process for preparing the same. The resin composition has excellent moldability and the molded articles made therefrom have superior chemical resistance, thermal stability and mechanical properties.

Inventors

  • 👤 Nakaba Asahara
  • 👤 Yasuhiko Asai
  • 👤 Kenji Yasue

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:36
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L67/025; C08L67/03; C08L77/00

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 296 words
A resin composition comprising: A. 1 to 98.9% by weight, based on the resin composition, of an aromatic copolyester comprising the reaction product in about equi-molar amounts of (1) terephthalic acid and isophthalic acid and/or the functional derivatives thereof, wherein the terephthalic acid unit/isophthalic acid unit molar ratio ranges from about 9:1 to about 1:9, and (2) a bisphenol of the following general formula ##STR9## wherein -X- represents a member selected from group consisting of -O-, -S-, -SO 2 -, -SO-, -CO-, and alkylene and alkylidene groups containing 1 to 4 carbon atoms, and each of R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ' and R 4 ' is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 4 carbon atoms, or a derivative thereof; B. 1 to 98.9% by weight, based on the resin composition, of a polyamide of the following general formula: ##STR10## wherein R 5 , R 6 and R 7 each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer of from 30 to 500; and C. 0.1 to 98% by weight, based on the resin composition, of a polyalkylene phenylene ester or polyalkylene phenylene ester ether of the following formula: ##STR11## wherein R 8 , R 9 , R 10 and R 11 each represents a member selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 4 carbon atoms, m is an integer of from 1 to 10, n is an integer of from 30 to 500. Y is an ester unit or an ether unit.
Claim 2
Dependent Claim 296 words
A resin composition comprising: A. 1 to 98.9% by weight, based on the resin composition, of an aromatic copolyester comprising the reaction product in about equi-molar amounts of (1) terephthalic acid and isophthalic acid and/or the functional derivatives thereof, wherein the terephthalic acid unit/isophthalic acid unit molar ratio ranges from about 9:1 to about 1:9, and (2) a bisphenol of the following general formula ##STR9## wherein -X- represents a member selected from group consisting of -O-, -S-, -SO 2 -, -SO-, -CO-, and alkylene and alkylidene groups containing 1 to 4 carbon atoms, and each of R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ' and R 4 ' is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 4 carbon atoms, or a derivative thereof; B. 1 to 98.9% by weight, based on the resin composition, of a polyamide of the following general formula: ##STR10## wherein R 5 , R 6 and R 7 each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer of from 30 to 500; and C. 0.1 to 98% by weight, based on the resin composition, of a polyalkylene phenylene ester or polyalkylene phenylene ester ether of the following formula: ##STR11## wherein R 8 , R 9 , R 10 and R 11 each represents a member selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 4 carbon atoms, m is an integer of from 1 to 10, n is an integer of from 30 to 500. Y is an ester unit or an ether unit.
Claim 3
Dependent Claim 60 words
The resin composition as claimed in claim 1, comprising: A. 10 to 89.9% by weight, based on the resin composition, of said aromatic copolyester; B. 10 to 89.9% by weight, based on the resin composition, of said polyamide; and C. 0.1 to 80% by weight, based on the resin composition of said polyalkylene phenylene ester or polyalkylene phenylenic ester ether.
Claim 4
Dependent Claim 60 words
The resin composition as claimed in claim 1, comprising: A. 15 to 84.9% by weight, based on the resin composition, of aid aromatic copolyester; B. 15 to 84.9% by weight, based on the resin composition, of said polyamide; and C. 0.1 to 70% by weight, based on the resin composition, of said polyalkylene phenylene ester or polyalkylene phenylene ester ether.
Claim 5
Dependent Claim 60 words
The resin composition as claimed in claim 1, comprising: A. 15 to 80% by weight, based on the resin composition, of said aromatic copolyester; B. 15 to 80% by weight, based on the resin composition, of said polyamide; and C. 5 to 70% by weight, based on the resin composition, of said polyalkylene phenylene ester or polyalkylene phenylene ester ether.
Claim 6
Dependent Claim 62 words
The resin composition as claimed in claim 1, comprising: A. 15 to 84.9% by weight, based on the resin composition, of said aromatic copolyester; B. 15 to 84.9% by weight, based on the resin composition, of said polyamide; and C. 0.1 to less than 5% by weight, based on the resin composition, of said polyalkylene phenylene ester or polyalkylene phenylene ester ether.
Claim 7
Dependent Claim 62 words
The resin composition as claimed in claim 1, comprising: A. 30 to 69.9% by weight, based on the resin composition, of said aromatic copolyester; B. 30 to 69.9% by weight, based on the resin composition, of said polyamide; and C. 0.1 to less than 5% by weight, based on the resin composition, of said polyalkylene phenylene ester or polyalkylene phenylene ester ether.
Claim 8
Dependent Claim 24 words
The resin composition as claimed in claim 1, wherein the molar ratio of said terephthalic acid unit/isophthalic acid unit ranges from 3:7 to 7:3.
Claim 9
Dependent Claim 21 words
The resin composition as claimed in claim 1, wherein the molar ratio of said terephthalic acid unit/isophthalic acid unit is 1:1.
Claim 10
Dependent Claim 14 words
The resin composition as claimed in claim 1, wherein said bis-phenol component is 2,2-bis(4-hydroxyphenyl)propane.
Claim 11
Dependent Claim 14 words
The resin composition as claimed in claim 1, wherein said polyamide is a polycaprolactam.
Claim 12
Dependent Claim 15 words
The resin composition as claimed in claim 1, wherein said polyamide is a polyhexamethylene adipamide.
Claim 13
Dependent Claim 15 words
The resin composition as claimed in claim 1, wherein said polyamide is a polyhexamethylene sebacamide.
Claim 14
Dependent Claim 15 words
The resin composition as claimed in claim 1, wherein said polyamide is a polyaminoundecnoic acid.
Claim 15
Dependent Claim 14 words
The resin composition as claimed in claim 1, wherein said polyamide is a polylaurolactam.
Claim 16
Dependent Claim 21 words
The resin composition as claimed in claim 1, wherein said polyalkylene phenylene ester or polyalkylene phenylene ester ether is polyethylene terephthalate.
Claim 17
Dependent Claim 22 words
The resin composition as claimed in claim 1, wherein said polyalkylene phenylene ester or polyalkylene phenylene ester ether is a polytetramethylene terephthalate.
Claim 18
Dependent Claim 23 words
The resin composition as claimed in claim 1, wherein said polyalkylene phenylene ester or polyalkylene phenylene ester ether is a polyethylene-p-phenylene ester ether.
Claim 19
Dependent Claim 100 words
A process for preparing the resin composition as claimed in claim 1, comprising preparing a resin composition containing said aromatic copolyester in a proportion higher than the predetermined amount of said aromatic copolyester for the resin composition by melt blending (A) said aromatic copolyester with at least a portion of at least one of (B) said polyamide and (C) said polyalkylene phenylene ester or said polyalkylene phenylene ester ether, then adding to the resulting composition the remainder of (B) said polyamide and/or (C) said polyalkylene phenylene ester or polyalkylene phenylene ester ether and further melt blending the thus obtained mixture.

References Cited (Backward Citations)

US3553288A Cited
US3522328A Cited
US3658981A Cited
US3758442A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-03 1981-04-04 1981-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-03 1985-04-04 1985-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-03 1989-04-04 1989-10-04 $7700.00 Window Closed / Lapsed

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