Home

Primary Examiner: Hoke, V. P.
Assistant Examiner:
Attorney: Sherman & Shalloway

Next ten patents ordered by date:

Arch shaped snap-type switch contact
Electrical slide switch
Foundry sand compositions containing graft copolymers of biochemically-synthesized heteropolysaccharides
Resin composition for laminates and prepared therefrom
Epoxy surface coating compositions
Coacervation of anion-containing aqueous disperse systems with amphoteric polyelectrolytes
Aqueous coating compositions for asbestos-cement and the like
Surfacing composition containing aqueous resin emulsion and calcium sulfate hemihydrate plaster
Aqueous copolymer dispersions stable in the absence of emulsifying agent and method of producing the same by aqueous polymerization of unsaturated monomers in the presence of trihydric or tetrahydric alcohol
Emulsion polymerization of acrylate or other vinyl monomers using selected mixtures of soluble salts of certain sulfosuccinic acid half esters

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Polyurethane product with gas fading inhibitor and method of inhibiting the gas fading of polyurethane product

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Claims: What is claimed is:

1. A method of inhibiting the gas fading of polyurethane products which comprises incorporating therein a compound of the formula (I): ##SPC3## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently selected from the group consisting of hydrogen, methyl and ethyl, and n and m are each an integer from 1 to 3.

2. Polyurethane product having improved resistance to gas fading consisting essentially of polyurethane and a compound, as the gas fading inhibitor, of the formula, ##SPC4##

wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydrogen, methyl and ethyl, and n and m are each an integer from 1 to 3, in the amount of from about 0.1 to about 10% by weight of the polyurethane.

3. Polyurethane product of claim 2 wherein said compound is N,N'-dibenzylxylylenediamine.

4. Polyurethane product of claim 2 wherein said compound is 1,4-bis(benzylaminomethyl)-2, 5-dimethylbenzene.

5. Polyurethane product of claim 2 wherein said compound is 1,4-bis(paramethylbenzylaminoethyl) benzene.

6. Polyurethane product of claim 2 wherein the polyurethane product is a textile product.

7. Polyurethane product of claim 2 wherein the polyurethane product is a film.

8. Polyurethane product of claim 2 wherein the polyurethane product is a synthetic leather.

9. Polyurethane product of claim 2 wherein the polyurethane product is a coating material.

10. Polyurethane product of claim 2 wherein the polyurethane product is a foamed shaped article.
Other info:

Inventors: Ito, Masatomo (Yokohama, JA)
Gotoh, Tsuneo (Yokohama, JA)
Nishino, Shizuo (Kyoto, JA)

Application Number: 553625
Filing Date: 1975-02-27
Publication_date: 1976-03-30
Assignee: Showa Denko Kabushiki Kaisha (Tokyo, JA); Meisei Kagaku Kabushiki Kaisha (Kyoto, JA)
Primary Class(es): 521/128 521/163, 524/255
Other Classes:
US Patent Ref:

3352822	Nov, 1967	Yamadera et al.	260/45.
3395114	Jul, 1968	Smith	260/45.

Other Refs: Other References: Kyon et al., "Chemical Abstracts, " Vol. 72, p. 89, Section No. 33181z (2/1970).