Patent US4162276A successfully refreshed from Google Patents.
US4162276A
Expired / Lapsed
US
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Nonburning, non-dripping polyurethane compositions
Assignee: Uniroyal Chemical Co Inc
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Filing: 1978-05-01
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Granted: 1979-07-24
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Expires: 1998-05-01
Abstract
Abstract Non-dripping, self-extinguishing polyurethane elastomers comprising, a hexaalkoxymethylmelamine; an organic halogen-containing a compound and a P-substituted phosphocyclopentane 1-oxide incorporated into a polyurethane elastomer.
Inventors
- 👤 Yong S. Rim
- 👤 Walter Nudenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:14
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; C08K; C08K5/00; C08K5/02; C08K5/04; C08K5/49; C08K5/51; C08K5/53; C08K5/5397; C08L11/00; C08L23/00; C08L23/26; C08L23/28; C08L27/00; C08L27/02; C08L61/00; C08L61/20; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
184 words
A flame-retarded non-drip polyurethane composition comprising: (a) a polyurethane elastoplastic polymer; (b) about 3 to about 25 parts by weight per 100 parts by weight of polymer of a hexaalkoxymethylmelamine; (c) about 5 to about 25 parts by weight per 100 parts by weight of polymer of (1) a non-polymeric organic halogen compound wherein the compound is selected from the group consisting of chlorine and/or bromine containing aliphatic, aromatic and alicyclic compounds having a halogen content of about 35% to about 80% by weight said compound being substantially non-volatile and non-reactive toward the polyurethane polymer or (2) a polymer selected from the group consisting of polyvinylchloride, neoprene and chlorinated polyethylene; and (d) about 3 parts to about 20 parts by weight per 100 parts by weight of polyurethane polymer of a P-substituted phosphacyclopentene-1-oxide having the general formula: ##STR4## wherein R is C 1 -C 4 alkyl, phenyl or phenyl substituted with bromine or chlorine and R 1 , R 2 R 3 and R 4 are independently selected from the group consisting of hydrogen, C 1 to C 4 alkyl, phenyl, chlorine or bromine.
Claim 2
Dependent Claim
184 words
A flame-retarded non-drip polyurethane composition comprising: (a) a polyurethane elastoplastic polymer; (b) about 3 to about 25 parts by weight per 100 parts by weight of polymer of a hexaalkoxymethylmelamine; (c) about 5 to about 25 parts by weight per 100 parts by weight of polymer of (1) a non-polymeric organic halogen compound wherein the compound is selected from the group consisting of chlorine and/or bromine containing aliphatic, aromatic and alicyclic compounds having a halogen content of about 35% to about 80% by weight said compound being substantially non-volatile and non-reactive toward the polyurethane polymer or (2) a polymer selected from the group consisting of polyvinylchloride, neoprene and chlorinated polyethylene; and (d) about 3 parts to about 20 parts by weight per 100 parts by weight of polyurethane polymer of a P-substituted phosphacyclopentene-1-oxide having the general formula: ##STR4## wherein R is C 1 -C 4 alkyl, phenyl or phenyl substituted with bromine or chlorine and R 1 , R 2 R 3 and R 4 are independently selected from the group consisting of hydrogen, C 1 to C 4 alkyl, phenyl, chlorine or bromine.
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the hexaalkoxymethylmelamine has the general formula ##STR5## wherein R is a C 1 -C 5 alkyl group.
Claim 4
Dependent Claim
15 words
The composition of claim 2 wherein R is methyl, ethyl, propyl, butyl, isobutyl or pentyl.
Claim 5
Dependent Claim
14 words
The composition of claim 1 wherein the oxide is 3-methyl-1-phenyl-1-phospha-3-cyclopentene 1-oxide or 1-phenyl-1-phospha-3-cyclopentene 1-oxide.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein the halogen compound is 6-(1',4',5',6',7',7',-hexachloronorborn-5'-en-2'yl)-1,2,3,4,10,10-hexachloro-1,4,4a,5,6,7,8,8a-octahydro-1,4:5,8-dimethanonaphthalene.
Claim 7
Dependent Claim
28 words
The composition of claim 1 wherein the melamine compound is present at about 3 to about 10 parts by weight based on 100 parts by weight of polyurethane.
Claim 8
Dependent Claim
27 words
The composition of claim 1 wherein the oxide is present at about 5 to about 10 parts by weight based on 100 parts by weight of polyurethane.
Claim 9
Dependent Claim
28 words
The composition of claim 1 wherein the halogen compound is present of about 5 to about 10 parts by weight based on 100 parts by weight of polyurethane.
Claim 10
Independent Claim
194 words
A method for rendering a polyurethane elastoplastic 9 polymer flame-retarded and non-drip at combustion temperatures which comprises blending the elastoplastic with (a) about 3 to about 25 parts by weight per 100 parts by weight of polymer of a hexaalkoxymethylmelamine; (b) about 5 to about 25 parts by weight per 100 parts by weight of polymer of (1) a non-polymeric organic halogen compound wherein the compound is selected from the group consisting of chlorine and/or bromine containing aliphatic, aromatic and alicyclic compounds having a halogen content of about 35% to about 80% by weight said compound being substantially non-volatile and non-reactive toward the polyurethane polymer or (2) a polymer selected from the group consisting of polyvinylchloride, neoprene and chlorinated polyethylene; and (c) about 3 parts to about 20 parts by weight per 100 parts by weight of polyurethane polymer of a P-substituted phosphacyclopentene-1-oxide having the general formula: ##STR6## wherein R is C 1 -C 4 alkyl, phenyl or phenyl substituted with bromine or chlorine and R 1 , R 2 R 3 and R 4 are independently selected from the group consisting of hydrogen, C 1 to C 4 alkyl, phenyl, chlorine or bromine.
Claim 11
Independent Claim
194 words
A method for rendering a polyurethane elastoplastic 9 polymer flame-retarded and non-drip at combustion temperatures which comprises blending the elastoplastic with (a) about 3 to about 25 parts by weight per 100 parts by weight of polymer of a hexaalkoxymethylmelamine; (b) about 5 to about 25 parts by weight per 100 parts by weight of polymer of (1) a non-polymeric organic halogen compound wherein the compound is selected from the group consisting of chlorine and/or bromine containing aliphatic, aromatic and alicyclic compounds having a halogen content of about 35% to about 80% by weight said compound being substantially non-volatile and non-reactive toward the polyurethane polymer or (2) a polymer selected from the group consisting of polyvinylchloride, neoprene and chlorinated polyethylene; and (c) about 3 parts to about 20 parts by weight per 100 parts by weight of polyurethane polymer of a P-substituted phosphacyclopentene-1-oxide having the general formula: ##STR6## wherein R is C 1 -C 4 alkyl, phenyl or phenyl substituted with bromine or chlorine and R 1 , R 2 R 3 and R 4 are independently selected from the group consisting of hydrogen, C 1 to C 4 alkyl, phenyl, chlorine or bromine.
Claim 12
Dependent Claim
60 words
The method of claim 9 wherein the melamine compound is present at about 3 to about 10 parts by weight, the halogen compound or chlorine-containing polymer is present at about 5 to about 10 parts by weight and the oxide is present at about 5 to about 10 parts by weight all based on 100 parts by weight of elastoplastic.
Claim 13
Dependent Claim
23 words
The method of claim 9 wherein the hexaalkoxymethylmelamine has the general formula ##STR7## wherein R is a C 1 -C 5 alkyl group.
Claim 14
Dependent Claim
15 words
The method of claim 11 wherein R is methyl, ethyl, propyl, butyl, isobutyl or pentyl.
Claim 15
Dependent Claim
20 words
The method of claim 9 wherein the halogen-containing compound is 6-(1',4',5',6',7',7'-hexachloronorborn-5'-en-2'yl)-1,2,3,4,10,10-hexachloro-1,4,4a,5,6,7,8,8a-octahydro-1,4:5,8-dimethanonaphthalene and the oxide is 3-methyl-1-phenyl-1-phospha-3-cyclopentene 1-oxide or 1-phenyl-1-phospha-3-cyclopentene 1-oxide.
Claim 16
Dependent Claim
9 words
The method of claim 12 wherein R is methyl.
References Cited (Backward Citations)
US3121082A
Cited
US3257337A
Cited
US3644456A
Cited
US3966478A
Cited
US3803225A
Cited
US3855352A
Cited
US3882191A
Cited
US3970716A
Cited
US4064104A
Cited
US4021405A
Cited
US4010209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |