Rubber compositions having improved processability
申请人:MONSANTO EUROPE S.A.
公开号:EP0401193A1
公开(公告)日:1990-12-05
Alkylthioalkanoic acids, salts or esters having the formula
R¹S(CR³R⁴)xCO₂R²
where R¹ represents an alkyl or alkenyl group, or a hydroxy- or alkoxy- substituted alkyl or alkenyl group, said group containing (apart from the alkoxy carbon atoms in an alkoxy-substituted alkyl or alkenyl group) from 4 to 22 carbon atoms, R² represents hydrogen, a metallic or other cationic group, or an esterifying group, each of R³ and R⁴ represents independently hydrogen or an alkyl group, and x has a value of from 1 to 10, act as viscosity-modifying agents in unvulcanised rubber compositions. Compared with conventional processing aids, they improve the processing characteristics of unvulcanised rubber compositions and can have beneficial effect on the physical properties of vulcanisates obtained by the vulcanisation of such compositions.
Compositions for articles comprising replicated microstructures
申请人:GENERAL ELECTRIC COMPANY
公开号:EP1970409A1
公开(公告)日:2008-09-17
The present invention provides novel curable compositions useful in the preparation of light management films and other optical articles. The curable compositions comprise (a) 0.01 to about 1 weight percent of at least one C10-C40 aliphatic acid, (b) at least one a multifunctional (meth)acrylate having structure I; and in certain embodiments (c) at least one monofunctional (meth)acrylate. In one embodiment, the curable compositions comprise at least one silicone-containing surfactant. The curable compositions may be cured to provide the corresponding cured compositions.