Preparation process for solid acrylic resin suitable for UV photocuring system
AssigneePioneer Chemicals (Yangzhou) Co., Ltd
InventorsWei Xia, Jisheng Shen, Zhengfeng Zhang
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Abstract
A preparation process for a solid acrylic resin suitable for a UV curing system is a bulk polymerization method and comprises the steps: adding 100 parts by mass of at least one monofunctional monomer(s) having one polymerizable double bond per molecule, 1-10 parts by mass of one difunctional monomer having two polymerizable double bonds per molecule, 0.1-5.0 parts by mass of an initiator and 1-10 parts by mass of a chain transfer agent to a bulk polymerization reactor capable of water bath heating; homogenizing them by stirring; and then heating the bulk polymerization reactor with a constant temperature water bath at 40-90° C. until the polymerization reaction is completed.
Claims6
A preparation process of a solid acrylic resin suitable for use in a UV curing system, which is a bulk polymerization method and consists of the following steps:
- adding 100 parts by mass of at least one monofunctional monomer(s) having one polymerizable double bond per molecule, 1-5 parts by mass of one difunctional monomer having two polymerizable double bonds per molecule, 0.3-2.0 parts by mass of an initiator and 3-6 parts by mass of a chain transfer agent to a bulk polymerization reactor capable of water bath heating;
- homogenizing them by stirring;
- and then heating the bulk polymerization reactor in water bath with a constant temperature at 50-60° C. until the polymerization reaction is completed, wherein the initiator is composed of a main initiator and a co-initiator, and wherein the main initiator is lauroyl peroxide, and the co-initiator is 2, 5-dimethyl-2, 5-di(tert-butylperoxy) hexane or
- di-tert-butylperoxyhexahydroterephthalate, and the mass ratio of the main initiator to the co-initiator is 5:1, and wherein said solid acrylic resin is an unsaturated resin containing active double bonds, and when the reaction is completed, residual monomer is less than 1%.
Dependencies are inferred from the claim text.