摘要:
The invention relates to a process for preparing solid, transparent to translucent polyurethane molded items which, due to their elastic and optical properties, can be used, for instance, as an alternative material to rubber.
摘要:
This invention relates to a process for producing polyester-polyurethane compositions, and to the stabilization thereof in relation to hydrolytic ageing phenomena by an active ingredient combination comprising compounds containing carbodiimides with lactone derivatives, to mouldings produced therefrom and to the use thereof for semi-rigid, solid and/or cellular mouldings.
摘要:
The invention relates to polymer-modified polyisocyanates and to polyurethanes prepared therefrom, and to their use in the production of polyurethane molded bodies. The polyisocyanates are modified with thermoplastic vinyl polymers having a number average molecular weight of from 15 to 90 kg/mol.
摘要:
Polyurethane elastomers having improved behavior towards antistatic charge are produced by including an antistatic component in the polyurethane-forming reaction mixture. The antistatic component includes at least one quaternary alklyammonium monoalkylsulfate corresponding to a specified formula and at least one compound selected from (i) linear, OH-group-free dicarboxylic acid esters corresponding to a specified formula and/or (ii) a specified group of lactones. These polyurethane elastomers are particularly useful for the production of rollers, spring elements, mats and cushions, safety components in motor vehicles, shoe soles and shoe components.
摘要:
The present invention relates to polymer dispersions in polyester polyols, to a process for their preparation of these polymer dispersions and to their use for the preparation of polyurethanes, especially microcellular polyurethanes.
摘要:
A process for the CFC-free production of cellular polyurethane molded parts/articles with solid surfaces by reacting a reaction mixture of per se known starting materials in sealed molds, to yield polyurethane foams. Carbamates obtainable from aliphatic aminoalcohols and carbon dioxide are used as blowing agents, optionally in conjunction with other blowing agents. The process is suitable for producing foam coverings on steering wheels, spoilers and protective upholstery in car interiors, and for producing soles of shoes or shoe components.
摘要:
The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.
摘要:
Polyurethane elastomers having a defined node density are produced from specific polyetherester polyols. These elastomers are particularly useful for the production of microcellular and solid polyurethane elastomer components.
摘要:
The present invention relates to polymer dispersions in polyester polyols, a process for producing them and their use for the production of polyurethanes, in particular microcellular polyurethanes. These polyester polyols have sulfur atoms and are free of olefinically unsaturated groups.