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| We claim: 1. Rubber vulcanizates produced from at least one rubber, a crosslinking agent, a filler, ... |
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| Conductive coating composition comprising pigment grade carbon |
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| EPDM, HNBR and Butyl rubber compositions containing carbon black products |
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| Carbon black products for coloring mineral binders |
| The claimed invention is: 1. A mineral binder composition comprising a mineral binder and a carbon ... |
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| Dispersible carbonblack pellets |
| OF THE INVENTION The pellets of the present invention can be formed by agglomeration, either under ... |
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| Compositions of modified carbon products and amphiphilic ions and methods of using the same |
| What is claimed is: 1. A composition comprising a) an amphiphilic ion and b) a modified carbon ... |
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| Process for crosslinking |
| We claim: 1. A process for crosslinking comprising (a) introducing into a reactor, under ... |
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| Rubber composition and tire having tread thereof |
| What is claimed is: 1. A tire having a tread of a rubber composition comprised of the product of ... |
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| Non-aqueous inks and coatings containing modified carbon products |
| The claimed invention is: 1. A non-aqueous coating composition comprising a non-aqueous solvent and ... |
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Polyurethane composition
| Details |
Inventors: Kimura, Kenji; Fukuda, Kanako; Higo, Mutsuko; Miyake, Kunihito;
Assignee: Sumitomo Chemical Company, Ltd. (Osaka, JP)
Primary Examiner: Sergent; Rabon
Assistant Examiner:
Attorney, Agent or Firm: Colton, Esq.; Kendrew H., Fitch Even Tabin & Flannery
There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that (A) a hindered phenol antioxidant, and (B) an amide represented by the following general formula (I): wherein R1 represents an alkyl group having 12 to 21 carbon atoms is compounded in the polyurethane. |
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DETAILED DESCRIPTION 1.
A polyurethane composition comprising a polyurethane having compounded therein: (a) a hindered phenol in an antioxidant effective amount, wherein said hindered phenol is at least one selected from the group of compounds represented by the following general formula (II): wherein R3 represents a methyl group; n represents an integer of 1 to 4; and X represents an n-valent alcohol residue, having 1 to 18 carbon atoms, which optionally contains a hetero atom and/or a cyclic group, and (b) an amide represented by the following general formula (I): wherein R1 represents an alkyl group having 12 to 21 carbon atoms.
2.
The composition according to claim 1, wherein the amide is at least one selected from the group consisting of stearic acid amide and behenic acid amide.
3.
A composition according to claim 2, wherein said hindered phenol is 3,9-bis[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.
5]undecane.
4.
A polyurethane composition according to claim 1, wherein said polyurethane composition further comprises a member selected from the group consisting of a dye and pigment.
5.
A polyurethane composition according to claim 1, wherein R1 is an alkyl group having 18 to 21 carbon atoms.
6.
A process for preparing a polyurethane composition according to claim 5, wherein said polyurethane is colored with a member selected from the group consisting of a dye and a pigment.
7.
A polyurethane composition according to claim 1, wherein n is 2 in the hindered phenol compound represented by formula (II).
8.
The composition according to claim 1, wherein about 0.
5 part by weight to 5 parts by weight of said hindered phenol, per 100 parts by weight polyurethane, are compounded in said polyurethane.
9.
The composition according to claim 1, wherein 0.
1 part by weight to 10 parts by weight of said amide, per 100 parts by weight polyurethane, are compounded in said polyurethane.
10.
The composition according to claim 1, wherein about 0
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Adhesives and Rubbers 
