US3933736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin composition
Assignee: Ube Corp
•
Filing: 1974-08-14
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Granted: 1976-01-20
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Expires: 1994-08-14
Abstract
Abstract A stabilized polyolefin composition having resistance against deterioration caused by contact with heavy metals such as copper which comprises 100 weight parts of polyolefin and 0.001-5 weight parts of N-(salicyloylamino)imide is disclosed.
Inventors
- 👤 Toshio Yoshikawa
- 👤 Nagayoshi Sakamoto
- 👤 Tomitada Nagamori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:23
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D209/56; C07D209/58; C07D209/72; C07D209/76; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/14; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/34; C08K5/3412; C08K5/35
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
166 words
A polyolefin composition which comprises 100 weight parts of a polyolefin selected from the class consisting of homopolymers and copolymers of ethylene, propylene, butene-1, isobutene, pentene-1 and 4-methylpentene-1, copolymers of these olefins and ethyl acrylate, copolymers of these olefins and vinyl acetate, mixtures of these polymers, liquid amorphous polypropylene and liquid amorphous polybutene, and 0.001 ˜ 5 weight parts of N-(salicyloylamino)imide represented by the formula ##SPC8## or ##SPC9## in which A represents a group ##SPC10## in which R 1 - R 4 represent hydrogen atoms, halogen atoms, nitro groups, amino groups, carboxyl groups, hydroxyl groups, phenyl groups, phenylthio groups, or straight or branched alkyl, halogenated alkyl, alkoxyl, alkylthio, alkylamino or acylamino groups each having 1 to 5 carbon atoms, ##SPC11## and B represents a group ##SPC12## in which Q represents an oxygen atom, a sulfur atom, a methylene group, a carbonyl group, a phenylene group, a phthaloyl group, an isophthaloyl group or a terephthaloyl group, and n is an integer of 0 or 1 or ##SPC13##
Claim 2
Dependent Claim
166 words
A polyolefin composition which comprises 100 weight parts of a polyolefin selected from the class consisting of homopolymers and copolymers of ethylene, propylene, butene-1, isobutene, pentene-1 and 4-methylpentene-1, copolymers of these olefins and ethyl acrylate, copolymers of these olefins and vinyl acetate, mixtures of these polymers, liquid amorphous polypropylene and liquid amorphous polybutene, and 0.001 ˜ 5 weight parts of N-(salicyloylamino)imide represented by the formula ##SPC8## or ##SPC9## in which A represents a group ##SPC10## in which R 1 - R 4 represent hydrogen atoms, halogen atoms, nitro groups, amino groups, carboxyl groups, hydroxyl groups, phenyl groups, phenylthio groups, or straight or branched alkyl, halogenated alkyl, alkoxyl, alkylthio, alkylamino or acylamino groups each having 1 to 5 carbon atoms, ##SPC11## and B represents a group ##SPC12## in which Q represents an oxygen atom, a sulfur atom, a methylene group, a carbonyl group, a phenylene group, a phthaloyl group, an isophthaloyl group or a terephthaloyl group, and n is an integer of 0 or 1 or ##SPC13##
Claim 3
Dependent Claim
28 words
The polyolefin composition as claimed in claim 1, in which N-(salicyloylamino)imide is represented by the formula ##SPC14## in which A is the same as defined in claim 1.
Claim 4
Dependent Claim
28 words
The polyolefin composition as claimed in claim 1, in which N-(salicyloylamino)imide is represented by the formula ##SPC15## in which B is the same as defined in claim 1.
Claim 5
Dependent Claim
64 words
The polyolefin composition as claimed in claim 2, in which A of the formula of N-(salicyloylamino)imide represents a group ##SPC16## in which R 1 - R 4 represent hydrogen atoms, halogen atoms, nitro groups, amino groups, carboxyl groups, hydroxyl groups, phenyl groups, phenylthio groups, or straight or branched alkyl, halogenated alkyl, alkoxyl, alkylthio, alkylamino or acylamino groups each having 1 to 5 carbon atoms.
Claim 6
Dependent Claim
20 words
The polyolefin composition as claimed in claim 2, in which A of the formula of N-(salicyloylamino)imide represents a group ##SPC17##
Claim 7
Dependent Claim
20 words
The polyolefin composition as claimed in claim 2, in which A of the formula of N-(salicyloylamino)imide represents a group ##SPC18##
Claim 8
Dependent Claim
20 words
The polyolefin composition as claimed in claim 2, in which A of the formula of N-(salicyloylamino)imide represents a group ##SPC19##
Claim 9
Dependent Claim
20 words
The polyolefin composition as claimed in claim 2, in which A of the formula of N-(salicyloylamino)imide represents a group ##SPC20##
Claim 10
Dependent Claim
23 words
The polyolefin composition as claimed in claim 4, in which all of R 1 - R 4 of the formula represent hydrogen atoms.
Claim 11
Dependent Claim
23 words
The polyolefin composition as claimed in claim 4, in which all of R 1 - R 4 of the formula represent chlorine atoms.
Claim 12
Dependent Claim
30 words
The polyolefin composition as claimed in claim 4, in which one of R 1 - R 4 of the formula represents a carboxyl group and the others represent hydrogen atoms.
Claim 13
Dependent Claim
20 words
The polyolefin composition as claimed in claim 3, in which B of the formula of N-(salicyloylamino)imide represents a group ##SPC21##
Claim 14
Dependent Claim
20 words
The polyolefin composition as claimed in claim 3, in which B of the formula of N-(salicyloylamino)imide represents a group ##SPC22##
Claim 15
Dependent Claim
24 words
The polyolefin composition as claimed in claim 1 which comprises 100 weight parts of polyolefin and 0.05 ˜ 2 weight parts of the N-(salicyloylamino)imide.
Claim 16
Dependent Claim
20 words
The polyolefin composition as claimed in claim 1, which further comprises not less than one kind of a phenolic antioxidant.
Claim 17
Dependent Claim
29 words
The polyolefin composition as claimed in claim 15, in which the phenolic antioxidant is selected from the class consisting of tetrakis-[methylene 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]methane, 4,4'-thiobis(3-methyl-6-tert-butylphenol), 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and 2,6-di-tert-p-cresol.
Claim 18
Dependent Claim
35 words
The polyolefin composition as claimed in claim 1, which further comprises not less than one kind of additives which are selected from the class consisting of a known stabilizing agent, dispersing agent, plasticizer and filler.
Claim 19
Dependent Claim
24 words
The polyolefin composition as claimed in claim 1, in which the polyolefin is selected from the class consisting of homopolymers and copolymers of olefins.
Claim 20
Dependent Claim
29 words
The polyolefin composition as claimed in claim 1, in which the polyolefin is selected from the class consisting of an ethylene homopolymer, isotactic polypropylene and an ethylenevinyl acetate copolymer.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |