7024-09-1Relevant articles and documents
Method for separating partial (meth)acrylated polyols and urethane-based materials functionalized with (meth)acrylate produced by the partial (meth)acrylated polyols
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Paragraph 0090-0097, (2020/06/04)
A method for separating a partial (meth)acrylated polyol of the present invention comprises the steps of: making a triol react with (meth)acrylate; firstly extracting by adding water to the partial (meth)acrylated polyol prepared from the reaction step; and secondly extracting by adding a solvent to a first aqueous phase which is separated from a first organic phase in the first extraction step. A urethane-based material functionalized with (meth)acrylate of the present invention can be prepared by the reaction of a partial (meth)acrylated polyol and isocyanate.(AA) Reaction of polio and (meth)acrylate (poll, mono-, and de-(meth)acrylated polyol)(BB) Water (25%, v/v) 10 times extraction(CC) First organic phase(DD) First aqueous phase(EE) Evaporation of drying (molecular) solvent(FF) Dichloromethane (25%, v/v) 3 times extraction(GG) De-(meth)acrylated polyol(HH) Second organic phase(II) Second aqueous phase(JJ) Evaporation of drying (molecular) solvent(KK) Mono-(meth)acrylated polyol(LL) Remaining polyolsCOPYRIGHT KIPO 2020
MONOMERS, POLYMERS AND PHOTORESIST COMPOSITIONS
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Paragraph 0099; 0100, (2018/03/25)
In one preferred embodiment, polymers are provided that comprise a structure of the following Formula (I): Photoresists that comprises such polymers also are provided.