US4341880A
Expired / Lapsed
US
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Resin compositions of improved hue
Assignee: Yupo Corp
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Filing: 1981-02-20
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Granted: 1982-07-27
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Expires: 2001-02-20
Abstract
Abstract A resin composition of improved hue which comprises, in specified proportions, an olefin-based resin such as polypropylene and at least three specified antioxidants which are (1) 2,6-di-t-butyl paracresol, (2) tri(mono- and/or di-nonylphenyl)phosphite and/or distearyl pentaerythritol diphosphite, and (3) tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and/or octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate.
Inventors
- 👤 Takashi Toyoda
- 👤 Yozo Ohba
- 👤 Masaaki Yamanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:10
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
115 words
A resin composition of improved hue which comprises 100 parts of an olefin-based resin, 3 to 300 parts of finely divided calcium carbonate, 0.05 to 5 parts of a fatty acid having 12 or more carbon atoms and at least three members selected from the following antioxidants (a) through (c) in the stated proportions: (a) 2,6-di-t-butyl paracresol, in a quantity of 0.05 to 1 part; (b) an antioxidant selected from the group consistng of tri(mono- and/or di-nonylphenyl)phosphite and di-stearyl pentaerythritol di-phosphite, in a quantity of 0.05 to 1 part; and (c) an antioxidant selected from the group consisting of tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate, in a quantity of 0.05 to 1 part, all parts being by weight.
Claim 2
Dependent Claim
115 words
A resin composition of improved hue which comprises 100 parts of an olefin-based resin, 3 to 300 parts of finely divided calcium carbonate, 0.05 to 5 parts of a fatty acid having 12 or more carbon atoms and at least three members selected from the following antioxidants (a) through (c) in the stated proportions: (a) 2,6-di-t-butyl paracresol, in a quantity of 0.05 to 1 part; (b) an antioxidant selected from the group consistng of tri(mono- and/or di-nonylphenyl)phosphite and di-stearyl pentaerythritol di-phosphite, in a quantity of 0.05 to 1 part; and (c) an antioxidant selected from the group consisting of tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate, in a quantity of 0.05 to 1 part, all parts being by weight.
Claim 3
Dependent Claim
34 words
A resin composition as claimed in claim 1 wherein the olefin-based resin is a homopolymer or a copolymer comprising a predominant amount of an olefin selected from the group consisting of ethylene and propylene.
Claim 4
Dependent Claim
28 words
A resin composition as claimed in claim 2 wherein the olefin-based resin is a member selected from the group consisting of polypropylene, high density polyethylene, and mixtures thereof.
Claim 5
Dependent Claim
30 words
A resin composition as claimed in claim 1 wherein the fatty acid is a member selected from the group consisting of oleic acid, stearic acid, palmitic acid, and mixtures thereof.
Claim 6
Dependent Claim
15 words
A resin composition as claimed in claim 4 wherein the fatty acid is oleic acid.
Claim 7
Dependent Claim
37 words
A resin composition as claimed in any one of claims 1 to 5 which further comprises titanium dioxide in a quantity of up to 60 parts by weight per 100 parts by weight of the olefin-based resin.
Claim 8
Dependent Claim
121 words
A resin composition of improved hue which comprises 100 parts of an olefin-based resin, 3 to 300 parts of finely divided calcium carbonate, 0.05 to 5 parts of a fatty acid having 12 or more carbon atoms, 0.05 to 5 parts of bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate, and at least three members selected from the following antioxidants (a) through (c) in the stated proportions: (a) 2,6-di-t-butyl paracresol, in a quantity of 0.05 to 1 part; (b) an antioxidant selected from the group consisting of tri(mono- and/or di-nonylphenyl)phosphite and di-stearyl pentaerythritol di-phosphite in a quantity of 0.05 to 1 part; and (c) an antioxidant selected from the group consisting of tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate, in a quantity of 0.05 to 1 part, all parts being by weight.
Claim 9
Dependent Claim
121 words
A resin composition of improved hue which comprises 100 parts of an olefin-based resin, 3 to 300 parts of finely divided calcium carbonate, 0.05 to 5 parts of a fatty acid having 12 or more carbon atoms, 0.05 to 5 parts of bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate, and at least three members selected from the following antioxidants (a) through (c) in the stated proportions: (a) 2,6-di-t-butyl paracresol, in a quantity of 0.05 to 1 part; (b) an antioxidant selected from the group consisting of tri(mono- and/or di-nonylphenyl)phosphite and di-stearyl pentaerythritol di-phosphite in a quantity of 0.05 to 1 part; and (c) an antioxidant selected from the group consisting of tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate, in a quantity of 0.05 to 1 part, all parts being by weight.
Claim 10
Dependent Claim
34 words
A resin composition as claimed in claim 7 wherein the olefin-based resin is a homopolymer or a copolymer comprising a predominant amount of an olefin selected from the group consisting of ethylene and propylene.
Claim 11
Dependent Claim
28 words
A resin composition as claimed in claim 8 wherein the olefin-based resin is a member selected from the group consisting of propylene, high density polyethylene, and mixtures thereof.
Claim 12
Dependent Claim
30 words
A resin composition as claimed in claim 7 wherein the fatty acid is a member selected from the group consisting of oleic acid, stearic acid, palmitic acid, and mixtures thereof.
Claim 13
Dependent Claim
15 words
A resin composition as claimed in claim 10 wherein the fatty acid is oleic acid.
Claim 14
Dependent Claim
37 words
A resin composition as claimed in any one of claims 7 to 11 which further comprises titanium dioxide in a quantity of up to 60 parts by weight per 100 parts by weight of the olefin-based resin.
Claim 15
Dependent Claim
24 words
A resin composition as claimed in claim 1 or 7 wherein the fatty acid is a monocarboxylic acid having 12 to 22 carbon atoms.
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) | 1985-07-26 | 1986-01-25 | 1986-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-26 | 1990-01-25 | 1990-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-26 | 1994-01-25 | 1994-07-27 | $7700.00 | Window Closed / Lapsed |