Abstract: Disclosed in the invention is a fluorine-containing polymer microsphere. A polymerization monomer, a photoinitiator and a stable dispersant are added into a reaction kettle, carbon dioxide gas is introduced for emptying air therein, then liquid carbon dioxide is injected, an initiating light source is used for irradiating in the reaction kettle after the temperature and pressure of the reaction kettle are constant, the reaction is performed under the conditions of ?20-30° C. and 20-70 bar, wherein the concentration of the polymerization monomer accounting for the total volume of the reactants is 0.02-2 g/ml, and the weight ratio of the photoinitiator, stable dispersant and polymerization monomer is (0.3-10):(2-20):100; after the reaction is finished, the temperature returns to room temperature, and the precipitate is washed with liquid carbon dioxide, so as to obtain the polymer microspheres.
Type:
Grant
Filed:
March 15, 2013
Date of Patent:
October 3, 2017
Assignees:
SHANGHAI WEIKAI OPTOELECTRONICS NEW MATERIALS CO., LTD., SHANGHAI CHENGYING NEW MATERIALS CO., LTD
Abstract: Disclosed in the invention is a fluorine-containing polymer microsphere. A polymerization monomer, a photoinitiator and a stable dispersant are added into a reaction kettle, carbon dioxide gas is introduced for emptying air therein, then liquid carbon dioxide is injected, an initiating light source is used for irradiating in the reaction kettle after the temperature and pressure of the reaction kettle are constant, the reaction is performed under the conditions of ?20-30° C. and 20-70 bar, wherein the concentration of the polymerization monomer accounting for the total volume of the reactants is 0.02-2 g/ml, and the weight ratio of the photoinitiator, stable dispersant and polymerization monomer is (0.3-10):(2-20):100; after the reaction is finished, the temperature returns to room temperature, and the precipitate is washed with liquid carbon dioxide, so as to obtain the polymer microspheres.
Type:
Application
Filed:
March 15, 2013
Publication date:
December 24, 2015
Applicants:
SHANGHAI WEIKAI OPTOELECTRONICS NEW MATERIALS CO., LTD., SHANGHAI CHENGYING NEW MATERIALS CO., LTD
Abstract: A crosslinkable curing super-branched polyester and the cured product and the preparation method thereof are disclosed. The super-branched polyester has high refractive index and comprises a compound represented by the following structural formula (I). In the formula (I), HBP is the backbone of the super-branched polyester; both a and b are positive integers; the sum of a and b is less than or equal to n; n is more than or equal to 10 and less than 80. In the super-branched polyester, A is represented by formula (II) and N is represented by formula (III), wherein R is methyl or hydrogen atom; the mole ratio of N relative to the total mole of A and N is more than 30 mol %, and the ratio of the total mole of A and N relative to the product of the total mole of HBP backbone and n is more than 0.5 and less than or equal to 1.
Type:
Grant
Filed:
November 15, 2010
Date of Patent:
December 16, 2014
Assignee:
Shanghai Weikai Optoelectronics New Materials Co., Ltd.