The present invention relates to a surfactant composition containing a composition containing a diol derivative (I) and a surfactant:
1
wherein R
1
is analkyl or alkenyl group having 4 to 22 carbons, R
2
is an alkyl or alkenyl group having 1 to 18 carbon atoms and one of R
3
and R
4
is a straight-chain or branched alkyl or alkenyl group having 4 to 22 carbon atoms and derived from R
1
and the other is a hydrogen atom.
Process for the preparation of a polythiol polymer, sealant composition and sealant
申请人:PHILLIPS PETROLEUM COMPANY
公开号:EP0056066A1
公开(公告)日:1982-07-21
A sealant composition based on a mercaptan-terminated liquid polymer, fillers, plasticizer, and curing agent wherein the liquid mercaptan-terminated polymer employed is prepared from a mercapto acid or mercapto acid ester and a polyoxypropylene glycol, the polyoxypropylene glycol having been end-capped with ethylene oxide prior to esterification to give primary alcohol terminal groups. The cured sealant based on the ethylene oxide-end capped polymer exhibits a non-tacky surface, whereas a cured sealant based on a propylene oxide end-capped glycol exhibits a tacky surface.
Vulcanization of rubber with sulphur using a polyether and at least one conventional accelerator in a concentration below the usual range, i.e. below a value of 1,3% by weight, calculated on the rubber.
Particularly suitable are block polyethers from ethylene oxide and a 1,2-alkylene oxide having 12 to 20 carbon atoms. Further, it is of advantage to have the polyether and the usual accelerator together with other vulcanizing agents added to the rubber in accordance with the master batch procedure. These steps lead to a considerable reduction in the endan- germent of health that may be due to the usual accelerators, but have no detrimental effect on vulcanization.
Neue N-(2-Hydroxyalkyl)-aminosäuren und ihre Derivate, Verfahren zu ihrer Herstellung und diese enthaltende pharmazeutische Präparate
申请人:ASTA Pharma AG
公开号:EP0186083A2
公开(公告)日:1986-07-02
Die vorliegende Erfindung betrifft neue N-(2-Hydroxyalkyl)-aminosäuren und ihre Derivate der allgemeinen Formeln I und II,
Verfahren zu ihrer Herstellung und diese enthaltende pharmazeutische Präparate.
本发明涉及通式 I 和 II 的新型 N-(2-羟基烷基)-氨基酸及其衍生物、其制备工艺和含 有它们的药物组合物。
STABILIZATION OF ALKOXYLATED POLYTETRAHYDROFURANES WITH ANTIOXIDANTS
申请人:BASF SE
公开号:EP3085757A1
公开(公告)日:2016-10-26
The presently claimed invention is directed to the stabilization of compositions comprising alkoxylated polytetrahydrofuranes by antioxidant compounds that are selected from unsubstituted or substituted phenoxazines, unsubstituted or substituted phenothiazines, hydroquinone-type stabilizer, hindered amines and combinations thereof.