US4125571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding composition
Assignee: General Electric Co
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Filing: 1976-12-14
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Granted: 1978-11-14
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Expires: 1996-12-14
Abstract
Abstract A thermoplastic composition of a combination of polyesters comprising a poly(1,4-butylene terephthalate) and a polyester derived from a cyclohexanedimethanol.
Inventors
- 👤 Steven W. Scott
- 👤 Allen D. Wambach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:13
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
51 words
A thermoplastic molding composition which consists essentially of a combination of polyesters consisting of: a. a poly(1,4-butylene terephthalate) resin or a copolyester thereof with a minor amount of an aliphatic or aromatic dicarboxylic acid or an aliphatic polyol; b. a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid.
Claim 2
Dependent Claim
51 words
A thermoplastic molding composition which consists essentially of a combination of polyesters consisting of: a. a poly(1,4-butylene terephthalate) resin or a copolyester thereof with a minor amount of an aliphatic or aromatic dicarboxylic acid or an aliphatic polyol; b. a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid.
Claim 3
Dependent Claim
17 words
A thermoplastic molding composition as defined in claim 1 where component (a) is a poly(1,4-butylene terephthalate) resin.
Claim 4
Dependent Claim
62 words
A thermoplastic molding composition as defined in claim 1 wherein the polyester resin has repeating units of the formula: ##STR4## wherein the substituted cyclohexane ring is selected from the group consisting of the cis- and trans- isomers thereof and R represents an organic radical containing from 6 to 20 carbon atoms which is the decarboxylated residue derived from a hexacarbocyclic dicarboxylic acid.
Claim 5
Dependent Claim
18 words
A thermoplastic molding composition as defined in claim 3 wherein the polyester resin has the repeating unit: ##STR5##
Claim 6
Dependent Claim
35 words
A thermoplastic molding composition as defined in claim 1 wherein component (a) comprises from about 95 to about 20 parts by weight and component (b) comprises from about 5 to about 80 parts by weight.
Claim 7
Dependent Claim
63 words
A reinforced thermoplastic molding composition which consists essentially of: (i) a combination of polyesters consisting of (a) a poly(1,4-butylene terephthalate) resin or a copolyester thereof with a minor amount of an aliphatic or aromatic dicarbocyclic acid or an aliphatic polyol, and (b) a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid; and (ii) a reinforcing amount of a reinforcing filler.
Claim 8
Dependent Claim
63 words
A reinforced thermoplastic molding composition which consists essentially of: (i) a combination of polyesters consisting of (a) a poly(1,4-butylene terephthalate) resin or a copolyester thereof with a minor amount of an aliphatic or aromatic dicarbocyclic acid or an aliphatic polyol, and (b) a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid; and (ii) a reinforcing amount of a reinforcing filler.
Claim 9
Dependent Claim
17 words
A reinforced thermoplastic molding composition as defined in claim 6 where component (a) is a poly(1,4-butylene terephthalate)resin.
Claim 10
Dependent Claim
63 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein the polyester resin has repeating units of the formula: ##STR6## wherein the substituted cyclohexane ring is selected from the group consisting of the cis- and trans- isomers thereof and R represents an organic radical containing from 6 to 20 carbon atoms which is the decarboxylated residue derived from a hexacarbocyclic dicarboxylic acid.
Claim 11
Dependent Claim
19 words
A reinforced thermoplastic molding composition as defined in claim 8 wherein the polyester resin has the repeating unit: ##STR7##
Claim 12
Dependent Claim
17 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein the reinforcing filler is glass fiber.
Claim 13
Dependent Claim
36 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein component (a) comprises from about 95 to about 20 parts by weight and component (b) comprises from about 5 to about 80 parts by weight.
Claim 14
Dependent Claim
34 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein the reinforcing filler comprises from about 5 to about 50 parts by weight based on the combined weights of components (a) and (b).
Claim 15
Dependent Claim
18 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein the reinforcing filler is glass and mica.
Claim 16
Dependent Claim
18 words
A reinforced thermoplastic molding composition as defined in claim 6 wherein the reinforcing filler is glass and talc.
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) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |