US4532287A
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US
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Flameproofing composition for polypropylene comprising a halogenated alkylaryl ether, an organo-tin compound and a sterically hindered phenol or bisphenol
Assignee: Fidelity Union Bank
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Filing: 1984-05-11
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Granted: 1985-07-30
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Expires: 2004-05-11
Abstract
Abstract Compositions for flameproofing polymeric material comprising: (a) a halogenated alkylaryl ether, the aryl group of which may be substituted by halogen; (b) an organo-tin compound; and (c) a sterically hindered phenol or a bisphenol containing a sterically hindered --OH group on each phenyl. In this specification by the term "bisphenol" is meant a compound containing two phenol groups linked by a bridging group that is not attached to any other bisphenol groups and by the term "phenol" is meant compounds containing only a single phenol group.
Inventors
- 👤 Rudolf Bill
- 👤 Rainer Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/13; C08K5/56; C08K5/57; C09; C09K; C09K21/00; C09K21/06; C09K21/08
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
43 words
A flameproofing composition comprising: (a) a compound of formula (Ia) ##STR13## wherein A is a direct bond, C 1-4 alkylene, ##STR14## (b) an organo-tin compound; and (c) a sterically hindered phenol or a bisphenol containing a sterically hindered --OH group on each phenyl.
Claim 2
Dependent Claim
43 words
A flameproofing composition comprising: (a) a compound of formula (Ia) ##STR13## wherein A is a direct bond, C 1-4 alkylene, ##STR14## (b) an organo-tin compound; and (c) a sterically hindered phenol or a bisphenol containing a sterically hindered --OH group on each phenyl.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 in which component (b) is selected from di(C 1-12 alkyl)tin carboxylates and di(C 1-12 alkyl)tin mercaptides.
Claim 4
Dependent Claim
20 words
A composition according to claim 2 in which component (b) is selected from dibutyltin maleate, dioctyltin laurate and dibutyltin mercaptide.
Claim 5
Dependent Claim
54 words
A composition according to claim 2 in which component (c) is a compound of formula II, III or IV, ##STR15## in which R is hydrogen or C 1-12 alkyl; Z 1 is C 1-4 alkylene; Z 2 is C 1-4 alkylene; R 3 is C 1-12 alkyl; and R 4 is C 4-12 alkyl.
Claim 6
Dependent Claim
37 words
A composition according to claim 4 in which the ratio of component (a) to (c) is 50:1 to 5:1 and the ratio of component (b) to the sum of components (a) and (c) is 1:50 to 1:5.
Claim 7
Dependent Claim
28 words
Flameproofed polymeric material selected from the group consisting of polyethylene, polypropylene, polystyrene and ABS and containing 0.5 to 9%, by weight, of a composition according to claim 5.
Claim 8
Dependent Claim
20 words
A composition according to claim 4 in which component (b) is selected from dibutyltin maleate, dioctyltin laurate and dibutyltin mercaptide.
Claim 9
Dependent Claim
28 words
Flameproofed polymeric material selected from the group consisting of polyethylene, polypropylene, polystyrene and ABS and containing 0.5 to 9%, by weight, of a composition according to claim 4.
Claim 10
Dependent Claim
19 words
A composition according to claim 2 in which component (c) is a compound of formula IIa or IIb ##STR16##
Claim 11
Dependent Claim
54 words
A composition according to claim 1 in which component (c) is a compound of formula II, III or IV, ##STR17## in which R is hydrogen or C 1-12 alkyl; Z 1 is C 1-4 alkylene; Z 2 is C 1-4 alkylene; R 3 is C 1-12 alkyl; and R 4 is C 4-12 alkyl.
Claim 12
Dependent Claim
19 words
A composition according to claim 10 in which component (c) is a compound of formula IIa or IIb ##STR18##
Claim 13
Dependent Claim
32 words
A composition according to claim 10 in which component (c) is a compound of formula II defined in claim 6 where R 3 and R 4 are tert.-butyl and R is methyl.
Claim 14
Dependent Claim
37 words
A composition according to claim 1 in which the ratio of component (a) to (c) is 50:1 to 5:1 and the ratio of component (b) to the sum of components (a) and (c) is 1:50 to 1:5.
Claim 15
Dependent Claim
28 words
Flameproofed polymeric material selected from the group consisting of polyethylene, polypropylene, polystyrene and ABS and containing 0.5 to 9%, by weight, of a composition according to claim 13.
Claim 16
Dependent Claim
14 words
A composition according to claim 1 containing additionally a light stabilisor and/or an antioxidant.
Claim 17
Dependent Claim
26 words
A concentrated liquid solution containing 20 to 80% by weight of a composition according to claim 1 and 80 to 20% by weight of a solvent.
Claim 18
Dependent Claim
28 words
A solid masterbatch composition containing 20 to 80% by weight of a composition according to claim 1 and 80 to 20% by weight of a solid polymeric material.
Claim 19
Dependent Claim
19 words
A process for flameproofing a polymeric material comprising applying to the polymeric material a composition according to claim 1.
Claim 20
Dependent Claim
10 words
A polymeric substrate containing a composition according to claim 1.
Claim 21
Dependent Claim
12 words
Fibres or foils of polypropylene containing a composition according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |