Elastic foamed grinder material and method for producing the...

Details Elastic foamed grinder material and method for producing the... Elastic foamed grinder material and method for producing the...

2005-09-27

2005-09-27

Cooney, Jr., John M. (Department: 1711)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S128000, C521S167000, C521S170000

Reexamination Certificate

active

06949589

ABSTRACT:
An elastic foamed grinder material of polyurea series for grinding and/or buffing, which is obtainable by subjecting a composition including a main ingredient component including a polyisocyanate, and a composition comprising an aromatic diamine, a foaming agent, a foam-adjusting agent and a curing catalyst to foaming and curing in the presence of grinder granules, wherein the aromatic diamine is an aromatic diamine oligomer alone or in mixture with an aromatic diamine compound, and a method for producing the grinder material.

REFERENCES:
patent: 5034417 (1991-07-01), Matsuo et al.
patent: 5616677 (1997-04-01), Primeaux et al.
patent: 6020392 (2000-02-01), Kushner et al.
patent: 6114488 (2000-09-01), Kulp et al.
patent: 53-107794 (1978-09-01), None
patent: 4-115875 (1992-04-01), None
patent: 11-291175 (1999-10-01), None

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