Process for the repair of plastic parts using non-sagging, sanda

Details Process for the repair of plastic parts using non-sagging, sanda Process for the repair of plastic parts using non-sagging, sanda

1995-12-07

1997-03-04

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

156 60, 156327, 1563309, 1563311, 1563314, B31B 160, B32B 3100, C09J 400, C09J10100

Patent

active

056079982

ABSTRACT:
The present invention relates to a process for repairing plastic parts with non-sagging, sandable polyurethane compositions. These compositions are prepared by mixing A) a liquid polyisocyanate having an isocyanate content of from about 10 to 50% by weight; B) a liquid isocyanate-reactive mixture comprising: i) one or more high molecular weight, hydroxyl group containing compounds, ii) one or more organic compounds containing amine groups, and iii) of one or more low molecular weight diols or triols; and C) an inorganic filler mixture consisting of: 1) of glass flakes, and 2) of another inorganic filler. Components A) and B) are present in quantities such that the isocyanate index is from 90 to 120. Component C) is dispersed phase-stable in either or both component A) and/or component B) prior to mixing components A) and B).

REFERENCES:
patent: 4943603 (1990-07-01), Martinez
patent: 5204439 (1993-04-01), Dormish et al.

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