US4049626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic compositions
Assignee: Great Lakes Chemical Corp
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Filing: 1973-02-08
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Granted: 1977-09-20
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Expires: 1993-02-08
Abstract
Abstract Plastic compositions containing polycarbonates and bis-phenoxy compounds having the formula ##STR1## WHEREIN Z is bromine, m is an integer having a value of 1-5 and m' is an integer having a value of 0-4, i is an integer, having a value of 0-2 and i' is an integer having a value of 1-5, alkylene is a straight or branched chain alkylene group having from 1 to 6 carbon atoms and A is chlorine.
Inventors
- 👤 Arnold L. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A plastic composition comprising polycarbonate and a flame retardant, said flame retardant consisting of a compound having the formula ##STR6## wherein Z is bromine; m is an integer having a value of 1-5 and m' is an integer having a value of 0-4; i is an integer having a value of 0-2 and i' is an integer having a value of 1-5; alkylene is a straight or branched chain alkylene group having from 1 to 6 carbon atoms; and A is chlorine.
Claim 2
Dependent Claim
82 words
A plastic composition comprising polycarbonate and a flame retardant, said flame retardant consisting of a compound having the formula ##STR6## wherein Z is bromine; m is an integer having a value of 1-5 and m' is an integer having a value of 0-4; i is an integer having a value of 0-2 and i' is an integer having a value of 1-5; alkylene is a straight or branched chain alkylene group having from 1 to 6 carbon atoms; and A is chlorine.
Claim 3
Dependent Claim
16 words
The composition as set forth in claim 1 wherein i is 0 and m' is 0.
Claim 4
Dependent Claim
15 words
The composition as set forth in claim 1 wherein i and i' are both 1.
Claim 5
Dependent Claim
14 words
The composition as set forth in claim 1 wherein alkylene is CH 2 .
Claim 6
Dependent Claim
16 words
The composition as set forth in claim 1 wherein alkylene is C 2 H 4 .
Claim 7
Dependent Claim
16 words
The composition as set forth in claim 1 wherein alkylene is C 3 H 6 .
Claim 8
Dependent Claim
16 words
The composition as set forth in claim 1 wherein alkylene is C 4 H 8 .
Claim 9
Dependent Claim
22 words
The composition as set forth in claim 5 wherein m and m' are both 2 and i and i' are both 1.
Claim 10
Dependent Claim
22 words
The composition as set forth in claim 6 wherein m and m' are both 2 and i and i' are both 1.
Claim 11
Dependent Claim
22 words
The composition as set forth in claim 7 wherein m and m' are both 2 and i and i' are both 1.
Claim 12
Dependent Claim
22 words
The composition as set forth in claim 4 wherein m is 3, i is 0, m' is 0 and i' is 5.
Claim 13
Dependent Claim
22 words
The composition as set forth in claim 5 wherein m is 3, i is 0, m' is 0 and i' is 5.
Claim 14
Dependent Claim
22 words
The composition as set forth in claim 6 wherein m is 3, i is 0, m' is 0 and i' is 5.
Claim 15
Dependent Claim
22 words
The composition as set forth in claim 7 wherein m is 3, i is 0, m' is 0 and i' is 5.
References Cited (Backward Citations)
US3658634A
Cited
US3717609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |