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US4603166A
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Crystalline polyamide composition from dicarboxylic acid mixture and diamine
Assignee: BP Corp North America Inc
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Filing: 1985-02-08
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Granted: 1986-07-29
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Expires: 2005-02-08
Abstract
Abstract Novel crystalline polyamides having high heat deflection temperatures when filled are prepared from aliphatic diamines and either mixtures of terephthalic acid and adipic acid or mixtures of terephthalic acid, isophthalic acid and adipic acid. The mole ratio of aliphatic diamine to terephthalic acid, isophthalic acid, and adipic acid is in the range of about 100:65-95:25-0:35-5. The polyamides can be filled with about 10 to about 60 parts by weight of a filler. The mechanical properties of these polyamides are largely unaffected by absorbed water.
Inventors
- 👤 Wassily Poppe
- 👤 Yu-Tsai Chen
- 👤 Larry W. Autry
- 👤 Joel A. Richardson
- 👤 David P. Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:49
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265; B32B27/34; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/16; C08K7/18; C08K7/20
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
66 words
A resinous polyamide comprising the following recurring units: ##STR2## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1 and wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms.
Claim 2
Dependent Claim
66 words
A resinous polyamide comprising the following recurring units: ##STR2## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1 and wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms.
Claim 3
Dependent Claim
20 words
The polyamide of claim 1 wherein the mole ratio of the acid moieties in said A:B:C units is about 65-80:25-5:15-10.
Claim 4
Dependent Claim
23 words
The polyamide of claim 1 wherein the mole ratio of said acid moieties in said A:B:C units is about 65:25:10 to about 75:15:10.
Claim 5
Dependent Claim
23 words
The polyamide of claim 1 wherein R, R 1 , and R 2 are hexamethylene with the formula (CH 2 ) 6 .
Claim 6
Dependent Claim
9 words
A molded object comprising the polyamide of claim 1.
Claim 7
Dependent Claim
8 words
A fiber comprising the polyamide of claim 1.
Claim 8
Dependent Claim
8 words
A laminate comprising the polyamide of claim 1.
Claim 9
Dependent Claim
26 words
A filled composition comprising 90 to 40 parts by weight of the polyamide of claim 1 and 10 to 60 parts by weight of mineral fiber.
Claim 10
Dependent Claim
122 words
A filled injection moldable polyamide composition wherein said polyamide comprises the following recurring units: ##STR3## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1, wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, wherein about 10 to about 60 percent by weight of the filled composition comprises a filler selected from the group consisting of glass fibers, glass beads, or graphite fibers or mixtures of the same and wherein the filled polyamide composition has a heat deflection temperature in excess of about 245° C.
Claim 11
Dependent Claim
122 words
A filled injection moldable polyamide composition wherein said polyamide comprises the following recurring units: ##STR3## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1, wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, wherein about 10 to about 60 percent by weight of the filled composition comprises a filler selected from the group consisting of glass fibers, glass beads, or graphite fibers or mixtures of the same and wherein the filled polyamide composition has a heat deflection temperature in excess of about 245° C.
Claim 12
Dependent Claim
21 words
The composition of claim 9 wherein the filler comprises about 30 to about 60 percent by weight of the filled composition.
Claim 13
Dependent Claim
25 words
The filled injection moldable polyamide composition of claim 9 wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-80:25-5:15-10.
Claim 14
Dependent Claim
20 words
The composition of claim 11 wherein said filler comprises about 30 to about 60 percent by weight of said composition.
Claim 15
Dependent Claim
39 words
The composition of claim 9 wherein said mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65:25:10 to about 75:15:10 and said filler comprises about 30 to about 60 percent by weight of said composition.
Claim 16
Dependent Claim
16 words
The composition of claim 9 wherein said R, R 1 , and R 2 are hexamethylene.
Claim 17
Dependent Claim
24 words
The composition of claim 13 wherein said R, R 1 , and R 2 are hexamethylene of the formula (CH 2 ) 6 .
Claim 18
Dependent Claim
15 words
The composition of claim 9 in the form of a molded article or a laminate.
Claim 19
Dependent Claim
42 words
A crystalline polyamide copolymer consisting essentially of the following recurring units: ##STR4## wherein the mole ratio of dicarboxylic acid moieties in I:II is about 65:35 to 95:5, wherein R and R 2 are aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms.
Claim 20
Dependent Claim
42 words
A crystalline polyamide copolymer consisting essentially of the following recurring units: ##STR4## wherein the mole ratio of dicarboxylic acid moieties in I:II is about 65:35 to 95:5, wherein R and R 2 are aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms.
Claim 21
Dependent Claim
10 words
A molded article comprising the polyamide copolymer of claim 17.
Claim 22
Dependent Claim
9 words
A fiber comprising the polyamide copolymer of claim 17.
Claim 23
Dependent Claim
9 words
A laminate comprising the polyamide copolymer of claim 17.
Claim 24
Dependent Claim
21 words
The polyamide copolymer of claim 17 wherein R and R 2 are hexamethylene of the formula (CH 2 ) 6 .
Claim 25
Dependent Claim
31 words
A filled composition comprising about 90 to 40 parts by weight of the polyamide copolymer of claim 17 and about 10 to about 60 parts by weight of a mineral fiber.
Claim 26
Dependent Claim
96 words
A filled injection moldable polyamide copolymer composition, said copolymer comprising the following recurring units: ##STR5## wherein the mole ratio of dicarboxylic acid moieties in I:II is about 65:35 to 95:5, wherein R and R 2 are aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, and wherein about 10 to about 60 percent by weight of the filled composition comprises a filler selected from the group consisting of glass fibers, glass beads, or graphite fibers, or mixtures of the same and wherein the filled copolymer has a heat deflection temperature in excess of about 245° C.
Claim 27
Dependent Claim
96 words
A filled injection moldable polyamide copolymer composition, said copolymer comprising the following recurring units: ##STR5## wherein the mole ratio of dicarboxylic acid moieties in I:II is about 65:35 to 95:5, wherein R and R 2 are aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, and wherein about 10 to about 60 percent by weight of the filled composition comprises a filler selected from the group consisting of glass fibers, glass beads, or graphite fibers, or mixtures of the same and wherein the filled copolymer has a heat deflection temperature in excess of about 245° C.
Claim 28
Dependent Claim
20 words
The composition of claim 23 wherein said filler comprises about 30 to about 60 percent by weight of said composition.
Claim 29
Dependent Claim
20 words
The composition of claim 21 wherein R and R 2 are hexamethylene of the formula (CH 2 ) 6 .
Claim 30
Dependent Claim
27 words
A blend comprising the composition of claim 1 and nylon 6,6 wherein said nylon 6,6 comprises from about 1 to about 99 weight percent of the blend.
Claim 31
Dependent Claim
27 words
A blend comprising the copolymer of claim 17 and nylon 6,6 wherein said nylon 6,6 comprises from about 1 to about 99 weight percent of the blend.
Claim 32
Dependent Claim
133 words
A process for preparing a polyamide composition having a heat deflection temperature of at least about 245° C., said process comprising compounding about 90 to about 40 parts by weight of a polyamide with about 10 to about 60 parts by weight of a filler, said polyamide comprising the following recurring units: ##STR6## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1, and wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, and wherein said filler is selected from the group consisting of glass fibers, glass beads, or graphite fibers or mixtures of the same.
Claim 33
Dependent Claim
133 words
A process for preparing a polyamide composition having a heat deflection temperature of at least about 245° C., said process comprising compounding about 90 to about 40 parts by weight of a polyamide with about 10 to about 60 parts by weight of a filler, said polyamide comprising the following recurring units: ##STR6## wherein the mole ratio of the dicarboxylic acid moieties in the A:B:C units is about 65-90:25-0:35-5 with the proviso that the mole ratio of the dicarboxylic acid moieties in the B:C units is less than 3:1, and wherein R, R 1 , and R 2 are, independently, divalent aliphatic hydrocarbyl radicals of 2 to 14 carbon atoms, and wherein said filler is selected from the group consisting of glass fibers, glass beads, or graphite fibers or mixtures of the same.
Claim 34
Dependent Claim
23 words
The process of claim 28 wherein R, R 1 , and R 2 are hexamethylene of the formula (CH 2 ) 6 .
Claim 35
Dependent Claim
45 words
A crystalline injection moldable polyamide copolymer having a heat deflection temperature of at least about 245° C. when molded and filled with glass fibers, glass beads or graphite fibers comprising the following recurring units: ##STR7## wherein the mole ratio of A:B:C units is about 65-90:25-5:30-5.
Claim 36
Dependent Claim
45 words
A crystalline injection moldable polyamide copolymer having a heat deflection temperature of at least about 245° C. when molded and filled with glass fibers, glass beads or graphite fibers comprising the following recurring units: ##STR7## wherein the mole ratio of A:B:C units is about 65-90:25-5:30-5.
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) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |