Patent US4192792A successfully refreshed from Google Patents.
US4192792A
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Atactic polypropylene
Assignee: Kenrich Petrochemicals Inc
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Filing: 1978-07-20
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Granted: 1980-03-11
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Expires: 1998-07-20
Abstract
Abstract Atactic polypropylene is upgraded to form composites which are workable by conventional thermoplastic shaping techniques by admixing the amorphous polypropylene with a filler which has been treated with an organo titanate chelate. Preferred fillers are the reinforcing fillers such as the silicates and silica. The organo titanate chelates are alpha, omega-alkylene titanates having two non-hydrolyzable groups.
Inventors
- 👤 Gerald Sugerman
- 👤 Salvatore J. Monte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:44
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
A filled polymeric composition which comprises atactic polypropylene admixed with a comminuted inorganic material reacted with an organic, omega-alkylene titanate having the formula: ##STR3## wherein A represents a non-hydrolyzable --OCOR', --OSO 2 R", (R"O) 2 P(O)OP(OH)(O)--, or )R"O) 2 P(O)O-- group; B is an R 2 C group or a carbonyl group; R is hydrogen or an alkyl group having from 1 to 6 carbon atoms; R' and R" are an alkyl, alkenyl, aryl, aralkyl or alkaryl group, or an alkyl, alkenyl, aryl, aralkyl, alkaryl, halo, ether, thioether, carbonyl or aromatic nitro substituted derivative thereof; and n is 1 or 2.
Claim 2
Dependent Claim
101 words
A filled polymeric composition which comprises atactic polypropylene admixed with a comminuted inorganic material reacted with an organic, omega-alkylene titanate having the formula: ##STR3## wherein A represents a non-hydrolyzable --OCOR', --OSO 2 R", (R"O) 2 P(O)OP(OH)(O)--, or )R"O) 2 P(O)O-- group; B is an R 2 C group or a carbonyl group; R is hydrogen or an alkyl group having from 1 to 6 carbon atoms; R' and R" are an alkyl, alkenyl, aryl, aralkyl or alkaryl group, or an alkyl, alkenyl, aryl, aralkyl, alkaryl, halo, ether, thioether, carbonyl or aromatic nitro substituted derivative thereof; and n is 1 or 2.
Claim 3
Dependent Claim
34 words
The composition of claim 1 wherein A is --OSO 2 R" group and R" is phenyl, a substituted phenyl or an aralkyl group having from 5 to 24 carbon atoms in the alkyl chain.
Claim 4
Dependent Claim
22 words
The composition of claim 1 wherein A is a (R"O) 2 P(O)0-- group and R" has from 6 to 24 carbon atoms.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein A is a (R"O) 2 P(O)OP(OH)(O)-- group and R" is an alkyl group having up to 12 carbon atoms.
Claim 6
Dependent Claim
22 words
The composition of claim 1 wherein A is an --OCOR' group and R' is a long chain group having 11-17 carbon atoms.
Claim 7
Dependent Claim
14 words
The composition of claim 1 wherein the comminuted inorganic material is a reinforcing filler.
Claim 8
Dependent Claim
38 words
A filled atactic polypropylene composition containing therein a silica or silicate reinforcing filler which has been treated with an organo-titanate compound having the formula: ##STR4## wherein R" is an alkyl group having from 1 to 12 carbon atoms.
Claim 9
Dependent Claim
38 words
A filled atactic polypropylene composition containing therein a silica or silicate reinforcing filler which has been treated with an organo-titanate compound having the formula: ##STR4## wherein R" is an alkyl group having from 1 to 12 carbon atoms.
Claim 10
Dependent Claim
11 words
The composition of claim 7 wherein the alkyl group is octyl.
Claim 11
Dependent Claim
38 words
A filled atactic polypropylene composition containing therein a silica or silicate reinforcing filler which has been treated with an organo-titanate compound having the formula: ##STR5## wherein R" is an alkyl group having from 6 to 24 carbon atoms.
Claim 12
Dependent Claim
38 words
A filled atactic polypropylene composition containing therein a silica or silicate reinforcing filler which has been treated with an organo-titanate compound having the formula: ##STR5## wherein R" is an alkyl group having from 6 to 24 carbon atoms.
Claim 13
Dependent Claim
11 words
The composition of claim 9 wherein the alkyl group is octyl.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |