Process for the production of fiber-containing polyurethane mold

Details Process for the production of fiber-containing polyurethane mold Process for the production of fiber-containing polyurethane mold

1983-04-11

1984-06-26

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521102, 521122, 521137, 521920, 523171, 524 12, 524 34, 524847, 524871, 524872, 524873, 524874, 524875, C08L 7504

Patent

active

044567073

ABSTRACT:
Polyurethane moldings having an inhomogeneously colored surface with color contrasts in fiber-like distribution are made by incorporating colored fibers of a specified type in a polyurethane forming reactionmixture. The colored fibers must have a staple length of from 0.1 to 6 mm, a denier of from 0.1 to 25 dtex, and a coloring agent that does not migrate or dissolve in the polyurethane-forming materials. These fibers are generally used in a quantity such that they represent from 0.1 to 10 wt. % of the polyurethane-forming reaction mixture. Shoe soles, shoe heels, multiple layer soles and padded components are examples of moldings which may be produced in accordance with the present invention.

REFERENCES:
patent: 3024209 (1962-03-01), Ferrigno
patent: 3904557 (1975-09-01), Guthrie et al.
patent: 3968182 (1976-07-01), Inoue et al.
patent: 4102831 (1978-07-01), Osgood
patent: 4137215 (1979-01-01), Van Gasse
patent: 4182700 (1980-01-01), Benton et al.
patent: 4201846 (1980-05-01), Kehr et al.
patent: 4368277 (1983-01-01), Burinsky et al.

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