US4274998A
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US
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Diester of 3,5,3',5'-tetrabromo-bisphenol A with halogenated aromatic carboxylic acid
Assignee: Asahi Kasei Corp
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Filing: 1979-10-11
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Granted: 1981-06-23
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Expires: 1999-10-11
Abstract
Abstract A novel diester compound of the formula (I): ##STR1## wherein each of R 1 and R 2 represents a group of the formula (II): ##STR2## wherein X is bromine atom; Y at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer 1 to 4 and (q+r) is equal to an integer of not more than 5, is found to be capable of imparting excellent flame-retardancy to various inflammable polymeric materials such as polystyrene, polyester, polyamide, polyphenylene oxide, etc. without deleterious effects on other physical properties of such polymeric materials.
Inventors
- 👤 Izumi Yamashita
- 👤 Kunio Fukuda
- 👤 Kichiya Tazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0066
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
94 words
A compound of the formula (I): ##STR8## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II): ##STR9## wherein X is bromine atom; Y at least one group selected from the group consisting of alkoxy groups having 1 to 4 carbon atoms, hydroxyl groups and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 2
Dependent Claim
94 words
A compound of the formula (I): ##STR8## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II): ##STR9## wherein X is bromine atom; Y at least one group selected from the group consisting of alkoxy groups having 1 to 4 carbon atoms, hydroxyl groups and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 3
Dependent Claim
16 words
A compound according to claim 1 where Y is a primary, secondary, or tertiary amino group.
Claim 4
Dependent Claim
13 words
A compound according to claim 2 where Y is a primary amino group.
Claim 5
Dependent Claim
16 words
A compound according to claim 3 where q is 1 to 2 and r is 1.
Claim 6
Dependent Claim
17 words
A compound according to claim 4 where R 1 and R 2 are identical and are ##STR10##
Claim 7
Dependent Claim
16 words
A compound according to claim 1 where Y is alkoxy of 1 to 4 carbon atoms.
Claim 8
Dependent Claim
16 words
A compound according to claim 6 where q is 1 to 2 and r is 1.
Claim 9
Dependent Claim
10 words
A compound according to claim 1 where Y is hydroxyl.
Claim 10
Dependent Claim
16 words
A compound according to claim 8 where q is 1 to 2 and r is 1.
Claim 11
Dependent Claim
133 words
A polymeric material improved in flame-retardancy, comprising: (a) at least one inflammable polymer selected from the group consisting of polystyrene, acrylonitrilestyrene resin, acrylonitrile-butadiene-styrene resin, polyphenylene oxide, polyester, polyamide, polyethylene, polypropylene, polyisoprene, polybutadiene, polyacrylate and polycarbonate; and (b) at least one compound of the formula (I): ##STR11## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II): ##STR12## wherein X is bromine atom; Y at least one group selected from the group consisting of, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 12
Dependent Claim
133 words
A polymeric material improved in flame-retardancy, comprising: (a) at least one inflammable polymer selected from the group consisting of polystyrene, acrylonitrilestyrene resin, acrylonitrile-butadiene-styrene resin, polyphenylene oxide, polyester, polyamide, polyethylene, polypropylene, polyisoprene, polybutadiene, polyacrylate and polycarbonate; and (b) at least one compound of the formula (I): ##STR11## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II): ##STR12## wherein X is bromine atom; Y at least one group selected from the group consisting of, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 13
Dependent Claim
37 words
A polymeric material according to claim 10, comprising 100 parts by weight of the inflammable polymer (a), 5 to 40 parts by weight of the compound (b) and 0 to 15 parts by weight of antimony trioxide.
Claim 14
Dependent Claim
14 words
A polymeric material according to claim 3, wherein the inflammable polymer (a) is polystyrene.
Claim 15
Dependent Claim
14 words
A polymeric material according to claim 3, wherein the inflammable polymer (a) is polyphenyleneoxide.
Claim 16
Dependent Claim
14 words
A polymeric material according to claim 3, wherein the inflammable polymer (a) is polyester.
Claim 17
Dependent Claim
14 words
A polymeric material according to claim 3, wherein the inflammable polymer (a) is polyamide.
Claim 18
Dependent Claim
14 words
A polymeric material according to claim 3, wherein the inflammable polymer (a) is polycarbonate.
Claim 19
Dependent Claim
17 words
A polymer material according to claim 2 where Y is a primary, secondary, or tertiary amino group.
Claim 20
Dependent Claim
17 words
A polymer material according to claim 17 where q is 1 to 2 and r is 1.
Claim 21
Dependent Claim
18 words
A polymer material according to claim 18 where R 1 and R 2 are identical and are ##STR13##
Claim 22
Dependent Claim
17 words
A polymer material according to claim 2 where Y is alkoxy of 1 to 4 carbon atoms.
Claim 23
Dependent Claim
17 words
A polymer material according to claim 20 where q is 1 to 2 and r is 1.
Claim 24
Dependent Claim
11 words
A polymer material according to claim 2 where Y is hydroxyl.
Claim 25
Dependent Claim
17 words
A polymer material according to claim 22 where q is 1 to 2 and r is 9.
Claim 26
Dependent Claim
103 words
A compound of the formula (1) ##STR14## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II) ##STR15## where X is bromine atom; Y is at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl groups and primary, secondary or tertiary amino groups; p an integer of 1 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 27
Dependent Claim
103 words
A compound of the formula (1) ##STR14## wherein R 1 and R 2 , which may be identical or different, represent the groups of the formula (II) ##STR15## where X is bromine atom; Y is at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl groups and primary, secondary or tertiary amino groups; p an integer of 1 to 4; q an integer of 1 to 4; r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 28
Dependent Claim
141 words
A polymeric material improved in flame-retardancy, comprising (a) at least one inflammable polymer selected from the group consisting of polystyrene, acrylonitrile-styrene resin, acrylonitrile-butadiene-styrene resin, polyphenylene oxide, polyester, polyamide, polyethylene, polypropylene, polyisoprene, polybutadiene polyacrylate, and polycarbonate; and (b) at least one compound of the formula (I) ##STR16## wherein Rhd 1 and R 2 , which may be identical or different, represent the group of the formula (II) ##STR17## wherein X is bromine atom, Y at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 1 to 4; q an integer of 1 to 4, r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
Claim 29
Dependent Claim
141 words
A polymeric material improved in flame-retardancy, comprising (a) at least one inflammable polymer selected from the group consisting of polystyrene, acrylonitrile-styrene resin, acrylonitrile-butadiene-styrene resin, polyphenylene oxide, polyester, polyamide, polyethylene, polypropylene, polyisoprene, polybutadiene polyacrylate, and polycarbonate; and (b) at least one compound of the formula (I) ##STR16## wherein Rhd 1 and R 2 , which may be identical or different, represent the group of the formula (II) ##STR17## wherein X is bromine atom, Y at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 1 to 4; q an integer of 1 to 4, r an integer of 1 to 4; and (q+r) is equal to an integer of not more than 5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |