Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Impact modifier MBS resin of polyvinyl chloride

An impact modifier, polyvinyl chloride technology, applied in the field of polyvinyl chloride impact modifier MBS resin, can solve the problems of controlling stress whitening, incomplete wrapping, and reduced impact strength

Active Publication Date: 2009-07-29
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will reduce the proportion of grafted monomers in the MBS resin, resulting in thinning of the rubber shell or incomplete wrapping, resulting in bare rubber cores or reduced interfacial bonding thickness, resulting in the blending of MBS resin and PVC. The interface bonding force becomes worse, and the impact strength is significantly reduced
In the above patents, it is difficult to ensure the impact strength of the product while controlling the anti-stress whitening

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Preparation of core inner layer polymer

[0019] 200 parts of deionized water, 0.002 parts of ferrous sulfate heptahydrate, 0.0033 parts of sodium ethylenediaminetetraacetate (EDTA), 0.108 parts of sodium pyrophosphate, 0.075 parts of diabolite, 7.5 parts of butadiene, 15 parts of styrene, 0.5 part of divinylbenzene, 0.075 part of dicumyl hydroperoxide and 0.3 part of potassium oleate. The above reaction mixture was added into a polymerization reactor, and the polymerization reaction was carried out at 60° C. for 16 hours to obtain the latex of the first polymer (core inner layer polymer) whose monomer conversion rate was above 99%.

[0020] (2) Preparation of core outer layer polymer

[0021] Add 0.6 part of potassium oleate (OLK) to the first polymer latex prepared above to adjust the pH value of the latex to 10. In this latex, add 28 parts of butadiene, 9 parts of styrene, 0.5 part of divinylbenzene, 10 parts of deionized water, 0.045 part of dicumyl peroxide a...

Embodiment 2

[0026] (1) Preparation of core inner layer polymer

[0027] In the process of repeating the preparation of Example 1, 1.05 parts of butadiene, 21.45 parts of styrene, and 0.5 part of divinylbenzene were added, and the additives were added in the same ratio as in Example 1, and the others were the same as in Example 1.

[0028] (2) Preparation of core outer layer polymer

[0029] With embodiment 1.

[0030] (3) Preparation of shell polymer

[0031] With embodiment 1.

Embodiment 3

[0033] (1) Preparation of core inner layer polymer

[0034] In the process of repeating the preparation of Example 1, 10.60 parts of butadiene, 11.90 parts of styrene, and 0.5 part of divinylbenzene were added, and the additives were added in the same ratio as in Example 1, and the others were the same as in Example 1.

[0035] (2) Preparation of core outer layer polymer

[0036] With embodiment 1.

[0037] (3) Preparation of shell polymer

[0038] With embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a polyvinyl chloride impact modifier MBS resin which comprises the following components by mass: (1) 10-55 parts of intranuclear polymer consists of 5-45 percent of conjugateddiene, 45-95 percent of unsaturated aromatic hydrocarbon vinyl monomer and 0-10 percent of cross linker; (2) 20-70 parts of extranuclear polymer consists of 65-85 percent of conjugateddiene, 10-34 percent of unsaturated aromatic hydrocarbon vinyl monomer and 1-5 percent of cross linker; and (3) 15-45 parts of shell polymer consists of 0-5 percent of cross linker, 60-90 percent of alkyl methacrylate or alkyl acrylate and 10-35 percent of unsaturated aromatic hydrocarbon vinyl monomer. The mixture product of the MBS resin and PVC has excellent crease and folding resistance and good impact resistance.

Description

technical field [0001] The invention relates to a polyvinyl chloride impact modifier MBS resin with excellent whitening resistance and good impact resistance. Background of the invention [0002] It is well known that the impact resistance of polyvinyl chloride resin can be improved by blending with impact modifiers. Such impact modifiers are usually copolymers of one or more vinyl monomers. For example: styrene, methyl methacrylate and acrylonitrile, this copolymer is grafted onto the rubber phase to form a graft copolymer. This graft copolymer has good light transmittance and impact resistance, but when the product is bent or folded, it is prone to stress whitening. The higher the impact strength of this modifier, the better the stress resistance. The whitening phenomenon is more obvious. In general, it is difficult to achieve good impact strength and excellent stress whitening resistance at the same time. This is also reported in some patents. Both Korean patent 6855...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F285/00C08L27/06C08L51/00
Inventor 李晶赵金德王硕张辉李金鹰于刚陈继新刘长清
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com