Preparation of flexible, soft polyurethane foams having viscoela

Details Preparation of flexible, soft polyurethane foams having viscoela Preparation of flexible, soft polyurethane foams having viscoela

1990-11-28

1995-05-30

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521129, 521137, 521160, 521164, 521173, 521174, 521176, 521914, 25218224, 25218225, 25218227, C08G 1814

Patent

active

054201705

ABSTRACT:
The present invention relates to a process for the preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties in a temperature range of from -20.degree. C. to +80.degree. C. by reacting

REFERENCES:
patent: 4241806 (1980-12-01), Metzger
patent: 4324831 (1982-04-01), Parrini et al.
patent: 4710521 (1987-12-01), Soukup et al.
patent: 4839397 (1989-06-01), Lohmar et al.
patent: 4987156 (1991-01-01), Tozune et al.
patent: 5059632 (1991-10-01), Horn et al.
patent: 5059633 (1991-10-01), Lutter et al.
patent: 5063253 (1991-11-01), Gansen et al.

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