Resin composition having improved haze and light transmittance and process for preparing the same

Patent metadata

Field	Value
Publication number	US-9834675-B2
Application number	US-201615094501-A
Country	US
Kind code	B2
Filing date	Apr 8, 2016
Priority date	Apr 10, 2015
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

The present invention relates to a resin composition having an improved haze effect and light transmittance and a process for preparing the same. The resin composition comprises blended components: a) a matrix resin; and b) crosslinked copolymer microspheres; wherein the crosslinked copolymer microspheres are alternating copolymers formed from monomers having anhydride, amide and/or imide groups, with olefin monomers and/or furan and its derivatives and optionally crosslinked with a crosslinking agent; preferably, the resin composition has a haze of not less than 92%, and a light transmittance of not less than 55%, preferably a haze of not less than 92%, and a light transmittance of not less than 59%, and more preferably a haze of not less than 95%, and a light transmittance of not less than 59%. The resin composition is energy efficient in use, provides excellent light diffusing effect, and, at the same time reduces the material cost.

First claim

What is claimed:

1. Resin composition having improved haze and light transmittance, comprising the following blended components: a. matrix resin; and b. optionally crosslinked copolymer microspheres; wherein the optionally crosslinked copolymer microspheres are alternating copolymers formed from monomers having anhydride, amide and/or imide groups, with olefin monomers and/or furan and its derivatives, and optionally crosslinked with a crosslinking agent.

2. The resin composition according to claim 1 , characterized in that the optionally crosslinked copolymer microspheres are monodisperse copolymer microspheres.

3. The resin composition according to claim 1 , characterized in that the optionally crosslinked copolymer microspheres have a particle size of from 0.01 to 20 microns, and dispersion coefficient of the particle size of 1.05 to 1.0001.

4. The resin composition according to claim 3 , characterized in that the optionally crosslinked copolymer microspheres have a particle size of from 0.1 to 10 microns.

5. The resin composition according to claim 3 , characterized in that the optionally crosslinked copolymer microspheres have a particle size of from 0.3 to 5 microns.

6. The resin composition according to claim 3 , characterized in that the optionally crosslinked copolymer microspheres have dispersion coefficient of the particle size of 1.02 to 1.001.

7. The resin composition according to claim 3 , characterized in that the optionally crosslinked copolymer microspheres have dispersion coefficient of the particle size of 1.017 to 1.001.

8. The resin composition according to claim 1 , characterized in that the optionally crosslinked copolymer microspheres are prepared by a self-stabilized dispersion polymerization process.

9. The resin composition according to claim 1 , characterized in that the content of the optionally crosslinked copolymer microspheres as component b is 0.01 to 10 parts, based on 100 parts by weight of the matrix resin as component a.

10. The resin composition according to claim 9 , characterized in that the content of the optionally crosslinked copolymer microspheres as component b is 0.05 to 8 parts, based on 100 parts by weight of the matrix resin as component a.

11. The resin composition according to claim 9 , characterized in that the content of the optionally crosslinked copolymer microspheres as component b is 0.1 to 5 parts, based on 100 parts by weight of the matrix resin as component a.

12. The resin composition according to claim 1 , characterized in that the matrix resin as component a is selected from at least one transparent or translucent matrix resin.

13. The resin composition according to claim 12 , characterized in that the matrix resin as component a is an aromatic polycarbonate resin.

14. The resin composition according to claim 13 , characterized in that the polycarbonate resin is copolycarbonate formed from dihydric phenol and/or phenol-modified diol.

15. The resin composition according to claim 14 , characterized in that the dihydric phenol is the compound of following formula (I):

in which
R1 and R2 each independently represent an alkyl group having 1-6 carbon atoms which is linear, branched or cyclic;
a and b respectively represent the number of substituents R1 and R2, and are an integer of 0 to 4; when R1 is two or more, the multiple Rls are the same or different from each other, when R2 is two or more, the multiple R2s are the same or different from each other;
X is a single bond, an alkylene having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene having 5 to 15 carbon atoms, a cycloalkylidene having 5 to 15 carbon atoms, —S—, —SO—, —O—, —CO— or the structure shown by the following formula (II-a) or formula (II-b):

16. The resin composition according to claim 14 , characterized in that the phenol-modified diol is a compound represented by the following formula (III):

in which
R3 and R4 each independently represent an alkyl group having 1 to 3 carbon atoms,
Y represents a linear or branched alkylene having 2 to 15 carbon atoms,
c and d each represent the number of substituents R3 and R4, and are an integer from 0 to 4,
n is an integer of 2 to 200 when R3 is two or more, the multiple R3s are the same or different from each other; when R4 is two or more, the multiple R4s are the same or different from each other.

17. The resin composition according to claim 16 , characterized in that the phenol-modified diol is a compound derived from hydroxybenzoic acid or its alkyl ester, acyl chloride and polyether-type diol.

18. The resin composition according to claim 17 , characterized in that the alkyl ester of hydroxybenzoic acid is selected from methyl hydroxybenzoate, and ethyl hydroxybenzoate.

19. The resin composition according to claim 17 , characterized in that the acyl chloride is selected from a compound obtained by reacting hydroxybenzoic acid with phosgene.

20. The resin composition according to claim 17 , characterized in that the polyether-type diol is a compound having the formula HO—(Y—O) n —H, wherein Y and n are defined as those in formula (III).

21. The resin composition according to claim 17 , characterized in that the polyether-type diol is at least one selected from polyethylene glycol, polypropylene glycol, and polybutylene glycol.

22. The resin composition according to claim 16 , characterized in that in formula III, n is an integer of 6 to 70.

23. The resin composition according to claim 14 , characterized in that the dihydric phenol is at least one selected from compounds of bis(hydroxy aryl)alkanes, bis(hydroxyl aryl)cycloalkanes, dihydroxy aromatic ethers, dihydroxydiaryl sulfides, dihydroxy diaryl sulfoxides, dihydroxydiarylsulfones, dihydroxybiphenyls, dihydroxydiphenyl fluorenes, dihydroxydiaryl adamantanes, bis(4-hydroxyphenyl)diphenylmethane, 4,4′-[1,3-phenylene bis(1-methylethylidene)]bisphenol, 10,10-bis(4-hydroxyphenyl)-9-anthrone, α,ω-bishydroxyphenyl polydimethylsiloxane.

24. The resin composition according to claim 23 , characterized in that the bis(hydroxy aryl) alkanes are selected from at least one of 2,2-bis(4-hydroxyphenyl) propane, bis(4 hydroxy phenyl) methane, 1,1-bis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4-hydroxyphenyl) octane, 2,2-bis(4-hydroxy-1-methylphenyl)propane, bis(4-hydroxyphenyl)naphthylmethane, 1,1-bis(4-hydroxy-tert-butylphenyl)propane, 2,2-bis(4-hydroxy-3-bromophenyl)propane, 2,2-bis(4-hydroxy-3,5-dimethylphenyl)propane, 2,2-bis(4-hydroxy-3-chlorophenyl)propane, 2,2-bis(4-hydroxy-3,5-dichlorophenyl)propane, and 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane;
the bis(hydroxyl aryl) cycloalkanes are selected from at least one of 1,1-bis(4-hydroxyphenyl)cyclopentane, 1,1-bis(4-hydroxyphenyl)cyclohexane, and 1,1-bis(4-hydroxyphenyl)-3,5,5-trimethyl cyclohexane;
the dihydroxy aromatic ethers are selected from at least one of 4,4′-dihydroxyphenyl ether, and 4,4′-dihydroxy-3,3-dimethylphenyl ether;
the dihydroxydiaryl sulfides are selected from at least one of 4,4′-dihydroxy dipheny

Assignees

• China Petroleum & Chem Corp
• Beijing Res Inst Chemical Ind China Petroleum & Chemical Corp

Inventors

• Qiao Jinliang
• Ru yue
• Zhang Xiaohong
• Yang Wantai
• Qi Guicun
• Cai Chuanlun
• Lai Jinmei
• Li Binghai
• Wang Xiang
• Song Zhihai
• Gao Jianming
• Zhang Hongbin
• Jiang Haibin
• He Gu

Classifications

• C08L2205/18

  Spheres · CPC title

• C08L2201/10

  Transparent films; Clear coatings; Transparent materials · CPC title

• C08L83/00

  Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers · CPC title

• C08L69/00 Primary

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C08K7/16 Primary

  Solid spheres · CPC title