US3983184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester resin composition
Assignee: Asahi Kasei Corp
•
Filing: 1974-12-30
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Granted: 1976-09-28
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Expires: 1994-12-30
Abstract
Abstract Fire retardant unsaturated polyester resin compositions are prepared by intimate mixing of unsaturated polyester resins and 100-900 parts by weight of hydrated magnesium carbonate per 100 parts by weight of polyester resin. Such compositions when reinforced with glass are suitable for use in building fire retardant interiors.
Inventors
- 👤 Kenji Kikuzawa
- 👤 Kilchiro Sasaguri
- 👤 Yasuyoshi Oda
- 👤 Hiroshi Sano
- 👤 Katsumi Okina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:43
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/18; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
107 words
Fire retardant unsaturated polyester resin composition comprising: 1. 100 parts by weight of unsaturated polyester resin which is the reaction product of a mixture containing a. 80% - 30% by weight of unsaturated polyester prepolymer prepared by condensation of at least one dicarboxylic acid, at least one glycol and at least one unsaturated dicarboxylic acid; or the reaction product of an epoxy compound having at least two 1,2 epoxy groups and a compound of the formula: ##EQU1## wherein R 1 is hydrogen or lower alkyl and R 2 is hydrogen or lower alkyl; b. 20% - 70% by weight of at least one vinyl compound; and 2.
Claim 2
Dependent Claim
107 words
Fire retardant unsaturated polyester resin composition comprising: 1. 100 parts by weight of unsaturated polyester resin which is the reaction product of a mixture containing a. 80% - 30% by weight of unsaturated polyester prepolymer prepared by condensation of at least one dicarboxylic acid, at least one glycol and at least one unsaturated dicarboxylic acid; or the reaction product of an epoxy compound having at least two 1,2 epoxy groups and a compound of the formula: ##EQU1## wherein R 1 is hydrogen or lower alkyl and R 2 is hydrogen or lower alkyl; b. 20% - 70% by weight of at least one vinyl compound; and 2.
Claim 3
Dependent Claim
11 words
100 - 900 parts by weight of hydrated magnesium carbonate represented
Claim 4
Dependent Claim
11 words
100 - 900 parts by weight of hydrated magnesium carbonate represented
Claim 5
Dependent Claim
43 words
by a general formula MgCO 3 , nH 2 O(n=3 or 5). 2. A resin composition as claimed in claim 1 wherein said dicarboxylic acid is phthalic acid anhydride, said unsaturated dicarboxylic acid is maleic acid anhydride and said glycol is diethylene glycol.
Claim 6
Dependent Claim
26 words
A resin composition as claimed in claim 1 wherein said hydrated magnesium carbonate is used in an amount of from 200 to 500 parts by weight.
Claim 7
Dependent Claim
22 words
A resin composition as in claim 1 wherein R 1 is hydrogen or methyl and R 2 is hydrogen, methyl or ethyl.
Claim 8
Dependent Claim
30 words
A resin composition as in claim 1 wherein the epoxy compound reaction product is of the formula: ##SPC6## wherein R is hydrogen or methyl and n is 0 to 15.
Claim 9
Dependent Claim
30 words
A resin composition as in claim 1 wherein the epoxy compound reaction product is of the formula: ##SPC7## wherein R is hydrogen or methyl and n is 0 to 3.
Claim 10
Dependent Claim
43 words
A resin composition as in claim 1 wherein the epoxy compound reaction product is of the formula: ##STR7##wherein R 1 is hydrogen or methyl, R 2 is hydrogen or methyl and R 3 is alkylene having 2 to 4 carbon atoms or phenylene.
Claim 11
Dependent Claim
36 words
A resin composition as in claim 1 wherein the epoxy compound reaction product is of the formula: ##STR8##wherein R 1 is hydrogen or methyl, R 2 is hydrogen or methyl and n is 0 to 10.
Claim 12
Dependent Claim
105 words
Fire retardant unsaturated polyester resin composition comprising: 1. 100 parts by weight of unsaturated polyester resin which is the reaction product of a mixture containing a. 80% - 30% by weight of unsaturated polyester prepolymer prepared by condensation of at least one dicarboxylic acid, at least one glycol and at least one unsaturated dicarboxylic acid; or the reaction product of an epoxy compound having at least two 1,2 epoxy groups and a compound of the formula: ##STR9##wherein R 1 is hydrogen or lower alkyl and R 2 is hydrogen or lower alkyl; b. 20% - 70% by weight of at least one vinyl compound; and
Claim 13
Dependent Claim
105 words
Fire retardant unsaturated polyester resin composition comprising: 1. 100 parts by weight of unsaturated polyester resin which is the reaction product of a mixture containing a. 80% - 30% by weight of unsaturated polyester prepolymer prepared by condensation of at least one dicarboxylic acid, at least one glycol and at least one unsaturated dicarboxylic acid; or the reaction product of an epoxy compound having at least two 1,2 epoxy groups and a compound of the formula: ##STR9##wherein R 1 is hydrogen or lower alkyl and R 2 is hydrogen or lower alkyl; b. 20% - 70% by weight of at least one vinyl compound; and
Claim 14
Dependent Claim
43 words
100 - 900 parts by weight of hydrated magnesium carbonate represented by a general formula MgCO 3 , nH 2 O(n=3 or 5) and 10% - 30% by weight of reinforcing material based on the weight of said resin and hydrated magnesium carbonate.
Claim 15
Dependent Claim
43 words
100 - 900 parts by weight of hydrated magnesium carbonate represented by a general formula MgCO 3 , nH 2 O(n=3 or 5) and 10% - 30% by weight of reinforcing material based on the weight of said resin and hydrated magnesium carbonate.
Claim 16
Dependent Claim
21 words
A composition as in claim 9 wherein R 1 is hydrogen or methyl and R 2 is hydrogen, methyl or ethyl.
Claim 17
Dependent Claim
29 words
A composition as in claim 9 wherein the epoxy compound reaction product is of the formula: ##SPC8## wherein R is hydrogen or methyl and n is 0 to 15.
Claim 18
Dependent Claim
29 words
A composition as in claim 9 wherein the epoxy compound reaction product is of the formula: ##SPC9## wherein R is hydrogen or methyl and n is 0 to 3.
Claim 19
Dependent Claim
42 words
A composition as in claim 9 wherein the epoxy compound reaction product is of the formula: ##STR10##wherein R 1 is hydrogen or methyl, R 2 is hydrogen or methyl and R 3 is alkylene having 2 to 4 carbon atoms or phenylene.
Claim 20
Dependent Claim
35 words
A composition as in claim 9 wherein the epoxy compound reaction product is of the formula: ##STR11##wherein R 1 is hydrogen or methyl, R 2 is hydrogen or methyl and n is 0 to 10.
References Cited (Backward Citations)
GB1017050A
Cited
US3631217A
Cited
US3468839A
Cited
US3560253A
Cited
US3676398A
Cited
US3669911A
Cited
US3795717A
Cited
US3721643A
Cited
US3789030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |