公开(公告)号：DE3343125A1

公开(公告)日：1985-06-05

申请号：DE3343125

申请日：1983-11-29

Applicant: BASF AG

Inventor： FRANK WERNER DR ,  BLUM RAINER ,  HORN PETER DR ,  WELZ MARTIN ,  OSTERLOH ROLF DR

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/48 ,  C08G18/70 ,  C08G18/72 ,  C08G18/79 ,  C08G18/80 ,  C08J9/02 ,  C08K7/02 ,  B29D27/00

Abstract: Reinforced cellular or noncellular molded polyurethane parts are prepared by heating a mixture of reinforcing materials and a heat-curable composition of polyisocyanates and polyols in an open or closed mold, said composition being storage-stable at room temperature and containing, optionally, auxiliaries and additives. In said composition, the polyisocyanate is dispersed in the form of discreet particles having particle diameters from 0.1 to 150 mu m in the polyol and the polyisocyanate particles are deactivated on their surfaces such that from 0.01 to 20 equivalent percent of the total available isocyanate groups are deactivated and such that the ratio of free isocyanate groups to hydroxyl groups is from 0.7:1 to 2.5:1. The polyurethane molded parts are suitable for use as self-supporting trim parts, reinforcement parts, or molded parts for various applications.

公开(公告)号：DE3343124A1

公开(公告)日：1985-06-05

申请号：DE3343124

申请日：1983-11-29

Applicant: BASF AG

Inventor： BLUM RAINER ,  FRANK WERNER DR ,  HORN PETER DR ,  OSTERLOH ROLF DR ,  WELZ MARTIN

IPC: C08G18/08 ,  C08G18/65 ,  C08G18/70 ,  C08G18/79 ,  C08G18/80 ,  C08G18/66 ,  C08G18/14 ,  C08L75/04

Abstract: The invention relates to compositions which are storage-stable at room temperature and which can be heat-cured to form molded parts having polyurethane, polyurea, and polyisocyanurate groups, said composition containing (a) one or more polyols having a molecular weight of from 400 to 10,000 and a functionality of from 2 to 8, (b) at least one polyfunctional compound having a molecular weight of 62 to 400 and being selected from the group consisting of aliphatic hydroxyl compound, cycloaliphatic hydroxyl compounds, aromatic amino compounds, or mixtures thereof, and (c) an organic polyisocyanate which is present in the form of discrete particles, which are deactivated on their surfaces and are dispersed in the liquid component, and depending on the product needs, (d) catalysts, (e) blowing agents, (f) reinforcing materials, and (g) auxiliaries and additives, The single-component systems are used for the preparation of cellular or noncellular, optionally reinforced polyurethane, polyurea, and/or polyisocyanurate group-containing molded parts.