发明授权
US5177153A Suspension polymerization process for the preparation of polymeric material from gaseous and non-gaseous monomers 失效
用于从气态和非气态单体制备聚合物材料的悬浮聚合方法

Suspension polymerization process for the preparation of polymeric
material from gaseous and non-gaseous monomers
摘要:
A suspension polymerization process for the preparation of a polymeric material formed from at least two monomers, a non-gaseous monomer and a gaseous monomer. The composition of the beads or particles of the polymeric material is controlled by adding gaseous monomer to the vapor phase after polymerization of about 5% to about 90% by weight of the non-gaseous monomer or by removing a portion or substantially all of the gaseous monomer in the vapor phase before polymerization of about 70% by weight of the gaseous monomer in the aqueous suspension, or a combination thereof.
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