US5229202A
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Carbon fiber and carbon fiber-reinforced resin composition using it
Assignee: Mitsubishi Chemical Corp
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Filing: 1991-05-20
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Granted: 1993-07-20
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Expires: 2011-05-20
Abstract
Abstract A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: ##STR1## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Inventors
- 👤 Shigeki Tomono
- 👤 Yoshihiro Sakamoto
- 👤 Yasushi Omata
- 👤 Manabu Fujiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:07
CPC Classifications
D; D01; D01F; D01F11/00; D01F11/10; D01F11/14; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249948; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2938; Y10T428/30
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
88 words
A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: ##STR8## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 2
Dependent Claim
88 words
A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: ##STR8## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 3
Dependent Claim
30 words
The carbon fiber according to claim 1, wherein said copolymer contains said polyalkylene oxide derivative in an amount of from 30 to 50% by weight as in the monomer composition.
Claim 4
Dependent Claim
41 words
The carbon fiber according to claim 1, wherein said diamine compound is a compound of the following formula (II): H.sub.2 N--R.sup.3 --NH.sub.2 (II) wherein R 3 is an alkyl group having not more than 15 carbon atoms, or a derivative thereof.
Claim 5
Dependent Claim
31 words
The carbon fiber according to claim 1, wherein said diamine compound is selected from the group consisting of ethylenediamine, tetramethylenediamine, hexamethylenediamine, octamethylenediamine and decamethylenediamine, and methylated, ethylated and halogenated derivatives thereof.
Claim 6
Dependent Claim
30 words
The carbon fiber according to claim 1, wherein said copolymer contains said diamine compound in an amount of from 25 to 45 % by weight as in the monomer composition.
Claim 7
Dependent Claim
50 words
The carbon fiber according to claim 1, wherein said dicarboxylic acid compound is a compound of the following formula (III): HOOC--R.sup.4 --COOH (III) wherein R 4 is an alkyl group having not more than 15 carbon atoms, or a single nucleus or two nuclei aromatic ring, or a derivative thereof.
Claim 8
Dependent Claim
41 words
The carbon fiber according to claim 1, wherein said dicarboxylic acid compound is selected from the group consisting of succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid, and methylated, ethylated and halogenated derivatives thereof.
Claim 9
Dependent Claim
19 words
The carbon fiber according to claim 1, wherein said dicarboxylic acid is terephthalic acid, isophthalic acid or 2,6-naphthalenedicarboxylic acid.
Claim 10
Dependent Claim
21 words
The carbon fiber according to claim 1, wherein the amount of the copolymer coated is from 0.5 to 20% by weight.
Claim 11
Dependent Claim
117 words
A carbon fiber-reinforced resin composition comprising 100 parts by weight of a thermoplastic matrix resin and from 1 to 50 parts by weight of a carbon fiber incorporated therein, said carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: ##STR9## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 12
Dependent Claim
117 words
A carbon fiber-reinforced resin composition comprising 100 parts by weight of a thermoplastic matrix resin and from 1 to 50 parts by weight of a carbon fiber incorporated therein, said carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: ##STR9## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 13
Dependent Claim
32 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said copolymer contains said polyalkylene oxide derivative in an amount of from 30 to 50% by weight as in the monomer composition.
Claim 14
Dependent Claim
43 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said diamine compound is a compound of the following formula (II): H.sub.2 N--R.sup.3 --NH.sub.2 (II) wherein R 3 is an alkyl group having not more than 15 carbon atoms, or a derivative thereof.
Claim 15
Dependent Claim
33 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said diamine compound is selected from the group consisting of ethylenediamine, tetramethylenediamine, hexamethylenediamine, octamethylenediamine and decamethylenediamine, and methylated, ethylate and halogenated derivatives thereof.
Claim 16
Dependent Claim
31 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said copolymer contains said diamine compound in an amount of from 25 to 45% by weight as in the monomer composition.
Claim 17
Dependent Claim
52 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said dicarboxylic acid compound is a compound of the following formula (III): HOOC--R.sup.4 --COOH (III) wherein R 4 is an alkyl group having not more than 15 carbon atoms, or a single nucleus or two nuclei aromatic ring, or a derivative thereof.
Claim 18
Dependent Claim
43 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said dicarboxylic acid compound is selected from the group consisting of succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid, and methylated, ethylated and halogenated derivatives thereof.
Claim 19
Dependent Claim
21 words
The carbon fiber-reinforced resin composition according to claim 10, wherein said dicarboxylic acid is terephthalic acid, isophthalic acid or 2,6-naphthalenedicarboxylic acid.
Claim 20
Dependent Claim
23 words
The carbon fiber-reinforced resin composition according to claim 10, wherein the amount of the copolymer coated is from 0.5 to 20% by weight.
Claim 21
Dependent Claim
92 words
A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound, a cyclic amide compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 30% by weight as in the monomer composition: ##STR10## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 22
Dependent Claim
92 words
A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound, a cyclic amide compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 30% by weight as in the monomer composition: ##STR10## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 23
Dependent Claim
30 words
The carbon fiber according to claim 19, wherein said copolymer contains said polyalkylene oxide derivative in an amount of from 15 to 25% by weight as in the monomer composition.
Claim 24
Dependent Claim
41 words
The carbon fiber according to claim 19, wherein said diamine compound is a compound of the following formula (II): H.sub.2 N--R.sup.3 --NH.sub.2 (II) wherein R 3 is an alkyl group having not more than 15 carbon atoms, or a derivative thereof.
Claim 25
Dependent Claim
31 words
The carbon fiber according to claim 19, wherein said diamine compound is selected from the group consisting of ethylenediamine, tetramethylenediamine, hexamethylenediamine, octamethylenediamine and decamethylenediamine, and methylated, ethylated and halogenated derivatives thereof.
Claim 26
Dependent Claim
29 words
The carbon fiber according to claim 19, wherein said copolymer contains said diamine compound in an amount of from 10 to 30% by weight as in the monomer composition.
Claim 27
Dependent Claim
50 words
The carbon fiber according to claim 19, wherein said dicarboxylic acid compound is a compound of the following formula (III): HOOC--R.sup.4 --COOH (III) wherein R 4 is an alkyl group having not more than 15 carbon atoms, or a single nucleus or two nuclei aromatic ring, or a derivative thereof.
Claim 28
Dependent Claim
41 words
The carbon fiber according to claim 19, wherein said dicarboxylic acid compound is selected from the group consisting of succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid, and methylated, ethylated and halogenated derivatives thereof.
Claim 29
Dependent Claim
19 words
The carbon fiber according to claim 19, wherein said dicarboxylic acid is terephthalic acid, isophthalic acid or 2,6-naphthalenedicarboxylic acid.
Claim 30
Dependent Claim
21 words
The carbon fiber according to claim 19, wherein said amount of the copolymer coated is from 0.5 to 20% by weight.
Claim 31
Dependent Claim
121 words
A carbon fiber-reinforced resin composition comprising 100 parts by weight of a thermoplastic matrix resin and from 1 to 50 parts by weight of a carbon fiber incorporated therein, said carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound, a cyclic amide compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 30% by weight as in the monomer composition: ##STR11## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 32
Dependent Claim
121 words
A carbon fiber-reinforced resin composition comprising 100 parts by weight of a thermoplastic matrix resin and from 1 to 50 parts by weight of a carbon fiber incorporated therein, said carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound, a cyclic amide compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 30% by weight as in the monomer composition: ##STR11## wherein R 1 is H or an alkyl group having not more than 20 carbon atoms, R 2 is H or CH 3 , and n is an integer of from 1 to 40.
Claim 33
Dependent Claim
32 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said copolymer contains said polyalkylene oxide derivative in an amount of from 15 to 25% by weight as in the monomer composition.
Claim 34
Dependent Claim
43 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said diamine compound is a compound of the following formula (II): H.sub.2 N--R.sup.3 --NH.sub.2 (II) wherein R 3 is an alkyl group having not more than 15 carbon atoms, or a derivative thereof.
Claim 35
Dependent Claim
33 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said diamine compound is selected from the group consisting of ethylenediamine, tetramethylenediamine, hexamethylenediamine, octamethylenediamine and decamethylenediamine, and methylated, ethylated and halogenated derivatives thereof.
Claim 36
Dependent Claim
31 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said copolymer contains said diamine compound in an amount of from 10 to 30% by weight as in the monomer composition.
Claim 37
Dependent Claim
52 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said dicarboxylic acid compound is a compound of the following formula (III): HOOC--R.sup.4 --COOH (III) wherein R 4 is an alkyl group having not more than 15 carbon atoms, or a single nucleus or two nuclei aromatic ring, or a derivative thereof.
Claim 38
Dependent Claim
43 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said dicarboxylic acid compound is selected from the group consisting of succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid, and methylated, ethylated and halogenated derivatives thereof.
Claim 39
Dependent Claim
21 words
The carbon fiber-reinforced resin composition according to claim 28, wherein said dicarboxylic acid is terephthalic acid, isophthalic acid or 2,6-naphthalenedicarboxylic acid.
Claim 40
Dependent Claim
23 words
The carbon fiber-reinforced resin composition according to claim 28, wherein the amount of the copolymer coated is from 0.5 to 20% by weight.
Claim 41
Dependent Claim
21 words
The carbon fiber-reinforced resin composition according to claim 10, 6,6-nylon, 6,4-nylon, 6,10-nylon, 6-nylon or 12-nylon is used as the matrix resin.
Claim 42
Dependent Claim
29 words
The carbon fiber-reinforced resin composition according to claim 28, wherein a polycarbonate, a acrylonitrile-butadiene-styrene resin, a polybutylene terephthalate, polycarbonate or a polyphenylene oxide is used as the matrix resin.
Claim 43
Dependent Claim
35 words
The carbon fiber-reinforced resin composition according to claim 10, wherein the carbon fiber is incorporated in an amount of from 1 to 50 parts by weight per 100 parts by weight of the matrix resin.
Claim 44
Dependent Claim
35 words
The carbon fiber-reinforced resin composition according to claim 28, wherein the carbon fiber is incorporated in an amount of from 1 to 50 parts by weight per 100 parts by weight of the matrix resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |