Patent US4298517A successfully refreshed from Google Patents.
US4298517A
Expired / Lapsed
US
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Tetrahalophthalates as flame retardant plasticizers for halogenated resins
Assignee: Laurel Industries Inc
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Filing: 1979-08-23
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Granted: 1981-11-03
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Expires: 1999-08-23
Abstract
Abstract A flame retarded composition containing tetrahalophthalate plasticizer and a halogenated resin is provided.
Inventors
- 👤 Stanley R. Sandler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
A composition comprising a halogenated resin and a flame and smoke retarding amount of a plasticizer of the structure: ##STR17## wherein (a) the ring can have all possible isomeric arrangements: (b) R is selected from the group consisting of hydrogen, an alkyl of 1 to 10 carbons, hydroxyalkyl of 2 to 10 carbons, and polyhydroxyalkyl of 3 to 10 carbons; (c) R 1 is selected from the group consisting of hydrogen, an alkyl or substituted alkyl of 1 to 12 carbons, or ##STR18## (d) R 2 is independently selected from the class consisting of H and CH 3 --; (e) p is an integer of 4 to 50; (f) x is selected from O or NH; and (g) A is selected from Cl or Br.
Claim 2
Dependent Claim
125 words
A composition comprising a halogenated resin and a flame and smoke retarding amount of a plasticizer of the structure: ##STR17## wherein (a) the ring can have all possible isomeric arrangements: (b) R is selected from the group consisting of hydrogen, an alkyl of 1 to 10 carbons, hydroxyalkyl of 2 to 10 carbons, and polyhydroxyalkyl of 3 to 10 carbons; (c) R 1 is selected from the group consisting of hydrogen, an alkyl or substituted alkyl of 1 to 12 carbons, or ##STR18## (d) R 2 is independently selected from the class consisting of H and CH 3 --; (e) p is an integer of 4 to 50; (f) x is selected from O or NH; and (g) A is selected from Cl or Br.
Claim 3
Dependent Claim
32 words
The composition of claim 1 where the flame and smoke retarding amount of the plasticizer is from 1-100 parts per hundred parts of the halogenated resin and said resin is poly(vinyl chloride).
Claim 4
Dependent Claim
26 words
The composition of claim 2 wherein A is Br, R is ##STR19## X is oxygen, R 2 is H, p=7av. and R 1 =CH 3 .
Claim 5
Dependent Claim
30 words
The composition of claim 2 wherein A is Br, R is CH 2 CH 3 , X is oxygen, R 2 is H, p=7av. and R 1 =CH 3 .
Claim 6
Dependent Claim
26 words
The composition of claim 2 wherein A is Br, R is ##STR20## X is NH, R 2 is H, p=7av. and R 1 =CH 3 .
Claim 7
Dependent Claim
27 words
The composition of claim 2 wherein A is Br, R is ##STR21## Y is oxygen, R 2 is H, p is 2 and R 1 is H.
Claim 8
Dependent Claim
21 words
The composition of claim 3 wherein the flame and smoke retardant plasticizer has the isomeric phthalate structure for the aromatic rings.
Claim 9
Dependent Claim
14 words
The composition of claim 6 wherein R 1 is ##STR22## and p is 14.
Claim 10
Dependent Claim
9 words
The composition of claim 7 wherein p is 10.
Claim 11
Dependent Claim
13 words
The composition of claim 7 wherein R is C 2 H 5 .
References Cited (Backward Citations)
US2073937A
Cited
US2588512A
Cited
US2985612A
Cited
US3642646A
Cited
US3775165A
Cited
US4113689A
Cited
US4098704A
Cited
DE2719431A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |