Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing aggregated latex particle

A composition and particle technology, which is applied in the field of solidified particle composition, can solve the problems of performance degradation such as impact resistance, easy performance degradation, and difficulty

Inactive Publication Date: 2007-12-19
KANEKA CORP
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, if 4 parts by weight or more of foreign matter (that is, a high molecular weight polyanion in this case) is added to the polymer latex, it is conceivable that the inherent performance of the recycled polymer composition used for various purposes tends to deteriorate.
Especially in the case of imparting impact resistance to thermoplastic resins, it is difficult to say that it is a satisfactory method for graft polymers where the amount of compounding should be reduced as much as possible.

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

[0099]In the latex of graft polymer A (polymer solid content is 100 weight parts), add the sodium alginate (Co., Ltd. アルジテッツクスLL) aqueous solution of 1.5% by weight concentration (the aqueous solution viscosity that utilizes B-type viscometer to measure is 120mPa·s), wherein based on 100 parts by weight of graft polymer A, the solid content of sodium alginate was 0.4 parts by weight, and after stirring and mixing for 3 minutes, a mixed latex was obtained. Using a pressurized nozzle with a nozzle diameter of 0.6mm-a swirling flow cone nozzle, the mixed latex at a temperature of 5°C was mixed at a rate of 3.7kg / cm 2 The spray pressure makes the volume average droplet diameter of the droplets about 200 μm, sprayed into a cylindrical device with a height of 5 m from the liquid level at the bottom of the tower and a diameter of 60 cm. At the same time, the calcium chloride aqueous solution with a concentration of 30% by weight is mixed with air by using a two-fluid nozzle, and spra...

Embodiment 2

[0102] The same operation as in Example 1 was carried out except that the latex of the graft polymer B was used, and it was charged into a receiving tank in which a calcium chloride aqueous solution having a concentration of 1.0% by weight at 1° C. was charged at the bottom of the column. In the receiving tank, secondary coagulation among coagulated latex particles occurred, but after adding potassium palmitate, vigorous stirring was applied to obtain a coagulated particle composition passing through a 16-mesh sieve.

Embodiment 3

[0104] The same operation as in Example 1 was carried out except that the latex of the graft polymer C was used and charged into a receiving tank in which a calcium chloride aqueous solution having a concentration of 1.0% by weight at 20° C. was charged at the bottom of the tower.

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
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

An object of the present invention is to provide a new coagulated particle composition that can be recovered as a coagulated particle composition having an extremely low fine particle content, an extremely low coarse particle content, and satisfactory powder properties such as blocking resistance and powder flowability, without deteriorating the original quality of the polymer itself, for example, the effect of improving impact resistance. A coagulated particle composition includes a graft polymer (A) containing at least one flexible polymer phase and at least one rigid polymer phase, wherein the outermost part includes the rigid polymer phase; a water-soluble polymer compound (B) having a physical gel-forming property; and a gelling agent (C) therefor, wherein the content of the water-soluble polymer compound (B) having the physical gel-forming property is 0.01 to 3.0 parts by weight relative to 100 parts by weight of the graft polymer (A) and the ratio of the rigid polymer phase serving as the outermost part in the graft polymer (A) is 0.5 to 10 percent by weight.

Description

technical field [0001] This invention relates to coagulated particle compositions of grafted polymers. In more detail, the present invention relates to a solidified particle composition of a graft polymer excellent in performance such as impact resistance and anti-blocking performance. Background technique [0002] Graft polymers obtained by emulsion polymerization or suspension polymerization have been widely used to improve the impact resistance of, for example, thermoplastic resins. For vinyl chloride resins, it is known to use a diene-based or acrylate-based graft polymer in combination. (For example, refer to Patent Document 1) [0003] Generally, in the field of graft polymers for improving the impact resistance of thermoplastic resins or thermosetting resins, although the compounding amount is reduced as much as possible, from the perspective of desired performance or cost, research on the improvement of this point has been in progress for many years. conduct. (Fo...

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): C08L51/00
CPCC08C1/15C08J2301/00C08F6/22C08J3/122C08J2333/00C08C1/14
Inventor 植田贵志
Owner KANEKA CORP