Patent US4267095A successfully refreshed from Google Patents.
US4267095A
Expired / Lapsed
US
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Resin composition
Assignee: Dow Chemical Co
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Filing: 1978-10-26
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Granted: 1981-05-12
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Expires: 1998-10-26
Abstract
Abstract A resin composition is disclosed. The composition comprises an organic resin, a halogenated flame retardant incorporated within the organic resin, and a synergistic smoke suppressive filler of calcium carbonate and alumina trihydrate.
Inventors
- 👤 Clara J. del Valle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:02
CPC Classifications
C; C08; C08K; C08K3/00; C08K13/00; C08K13/02; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K3/26; Y; Y10; Y10S; Y10S524/00; Y10S524/922; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
62 words
A resin composition comprising: an organic resin selected from the group consisting of polyester, vinylester and mixtures thereof, an organic halogenated flame retardant incorporated within said organic resin so that halogen atoms are bonded to said organic resin in an amount sufficient to impart flame retardancy to said organic resin, and a synergistic smoke suppressive filler of calcium carbonate and alumina trihydrate.
Claim 2
Dependent Claim
62 words
A resin composition comprising: an organic resin selected from the group consisting of polyester, vinylester and mixtures thereof, an organic halogenated flame retardant incorporated within said organic resin so that halogen atoms are bonded to said organic resin in an amount sufficient to impart flame retardancy to said organic resin, and a synergistic smoke suppressive filler of calcium carbonate and alumina trihydrate.
Claim 3
Dependent Claim
50 words
The resin composition of claim 1 wherein the thermosettable resin is a vinyl ester resin prepared by reacting about equivalent proportions of an unsaturated monocarboxylic acid and a polyepoxide resin, said vinyl ester resin containing ##STR2## linkage groups and terminal vinylidene groups attached to the ester end of said linkage.
Claim 4
Dependent Claim
14 words
The resin composition of claim 2 wherein the thermosettable resin is an unsaturated polyester.
Claim 5
Dependent Claim
17 words
The resin composition of claim 3 wherein said unsaturated polyester is diluted with an ethylenically unsaturated monomer.
Claim 6
Dependent Claim
36 words
The resin composition of claim 4 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, methyl methacrylate, vinyl toluene, α-methyl styrene, divinyl benzene, halogenated styrenes, diallyl phthalate, triallyl cyanurate and mixtures thereof.
Claim 7
Dependent Claim
13 words
The resin composition of claim 4 wherein the ethylenically unsaturated monomer is styrene.
Claim 8
Dependent Claim
29 words
The resin composition of claim 1 wherein the halogenated flame retardant is selected from the group consisting of dibromoneopentyl glycol, brominated pentaerythritol polyesters, pentabromoethyl benzene, tetrabromophthalic anhydride, and pentabromotoluene.
Claim 9
Dependent Claim
14 words
The resin composition of claim 1 wherein the halogenated flame retardant is dibromoneopentyl glycol.
Claim 10
Dependent Claim
16 words
The resin composition of claim 1 wherein the halogenated flame retardant is a brominated pentaerythritol polyester.
Claim 11
Dependent Claim
33 words
The resin composition of claim 1 wherein the filler contains from about 10 to about 90 percent by weight alumina trihydrate and from about 10 to about 90 percent by weight calcium carbonate.
Claim 12
Dependent Claim
33 words
The resin composition of claim 1 wherein the filler contains from about 60 to about 75 percent by weight alumina trihydrate and from about 25 to about 40 percent by weight calcium carbonate.
Claim 13
Dependent Claim
33 words
The resin composition of claim 1 wherein sufficient amounts of the halogenated flame retardant are present to provide from about 1 to about 25 l percent by weight halogen in the resin composition.
Claim 14
Dependent Claim
32 words
The resin composition of claim 1 wherein sufficient amounts of the halogenated flame retardant are present to provide from about 1 to about 10 percent by weight halogen in the resin composition.
Claim 15
Dependent Claim
19 words
The resin composition of claim 1 containing from about 40 to about 70 percent by weight of the filler.
Claim 16
Dependent Claim
19 words
The resin composition of claim 1 containing from about 55 to about 65 percent by weight of the filler.
Claim 17
Dependent Claim
16 words
The resin composition of claim 1 wherein there is also present a flame retardant synergistic agent.
Claim 18
Dependent Claim
15 words
The resin composition of claim 16 wherein the flame retardant synergistic agent is antimony trioxide.
Claim 19
Dependent Claim
57 words
A molding composition comprising: (a) an unsaturated polyester resin; (b) from about 40 to about 70 percent by weight of a filler mixture of calcium carbonate and alumina trihydrate in synergistic combination to suppress smoke; and (c) from about 1 to about 25 percent by weight bromine in the form of a brominated pentaerythritol polyester flame retardant.
Claim 20
Dependent Claim
57 words
A molding composition comprising: (a) an unsaturated polyester resin; (b) from about 40 to about 70 percent by weight of a filler mixture of calcium carbonate and alumina trihydrate in synergistic combination to suppress smoke; and (c) from about 1 to about 25 percent by weight bromine in the form of a brominated pentaerythritol polyester flame retardant.
Claim 21
Dependent Claim
11 words
A shape article produced from the molding composition of claim 18.
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USPTO Annuity & Maintenance Windows
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|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |