Patent US4483952A successfully refreshed from Google Patents.
US4483952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin resin composition comprising a dibenzylidene sorbitol derivative
Assignee: Ec Chemical Ind Co Ltd
•
Filing: 1983-04-22
•
Granted: 1984-11-20
•
Expires: 2003-04-22
Abstract
Abstract A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula <IMAGE> wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom, a chlorine atom, alkyl groups having 1 to 3 carbon atoms and alkoxy groups having a C1-C3 alkyl moiety.
Inventors
- 👤 Hiroshi Uchiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:20
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/156; C08K5/1575
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula ##STR6## wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom, alkyl groups having 1 to 3 carbon atoms and alkoxy groups having a C 1 -C 3 alkyl moiety.
Claim 2
Dependent Claim
82 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula ##STR6## wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom, alkyl groups having 1 to 3 carbon atoms and alkoxy groups having a C 1 -C 3 alkyl moiety.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein the aliphatic monoolefin is selected from the group consisting of ethylene, propylene and methylpentene.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the dibenzylidene sorbitol derivative is 1,3-p-methylbenzylidene-2,4-p-ethylbenzylidene sorbitol.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the dibenzylidene sorbitol derivative is 1,3-p-ethylbenzylidene-2,4-p-methylbenzylidene sorbitol.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein the dibenzylidene sorbitol derivative is 1,3-benzylidene-2,4-p-methylbenzylidene sorbitol.
Claim 7
Dependent Claim
12 words
The composition of claim 1 wherein the dibenzylidene sorbitol is 1,3-p-methylbenzylidene-2,4-benzylidene sorbitol.
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the dibenzylidene sorbitol derivative is 1,3-benzylidene-2,4-p-ethylbenzylidene sorbitol.
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the dibenzylidene sorbitol derivative is 1,3-p-ethyl-2,4-benzylidene sorbitol.
Claim 10
Dependent Claim
73 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula: ##STR7## wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom and an alkyl group having 1 to 3 carbon atoms.
Claim 11
Dependent Claim
73 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of a dibenzylidene sorbitol derivative of the following formula: ##STR7## wherein R and R' are different from each other and each represents a member selected from the class consisting of a hydrogen atom and an alkyl group having 1 to 3 carbon atoms.
Claim 12
Dependent Claim
36 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of 1,3-p-chloro-benzylidene-2,4-p-methylbenzylidene sorbitol or 1,3-p-methylbenzylidene-2,4-p-chlorobenzylidene sorbitol.
Claim 13
Dependent Claim
36 words
A polyolefin resin composition consisting essentially of at least one homopolymer or copolymer of an aliphatic monoolefin and 0.05 to 2% by weight, based on the weight of the composition, of 1,3-p-chloro-benzylidene-2,4-p-methylbenzylidene sorbitol or 1,3-p-methylbenzylidene-2,4-p-chlorobenzylidene sorbitol.
Claim 14
Dependent Claim
14 words
The composition according to claim 10 wherein the dibenzylidene sorbitol derivative is 1,3-p-methylbenzylidene-2,4-p-chlorobenzylidene sorbitol.
Claim 15
Dependent Claim
13 words
The composition of claim 10 wherein the dibenzylidene sorbitol derivative is 1,3-p-chlorobenzylidene-2,4-p-methylbenzylidene sorbitol.
References Cited (Backward Citations)
US4016118B1
Cited
US4016118A
Cited
JPS5289158A
Cited
JPS5358547A
Cited
JPS53117044A
Cited
US4314039A
Cited
US4294747A
Cited
JPS56149451A
Cited
GB2077255A
Cited
US4371645A
Cited
US4388119A
Cited
JPS5734924A
Cited
JPS5792038A
Cited
EP0068773A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |