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

Aqueous synthetic resin emulsion, re-emulsifiable emulion powder, and adhesive composition containing the same

A synthetic resin, re-emulsification technology, applied in the direction of unsaturated alcohol copolymer adhesives, adhesive types, ester copolymer adhesives, etc. related issues, to achieve the effect of excellent water resistance

Inactive Publication Date: 2010-06-23
THE NIPPON SYNTHETIC CHEM IND CO LTD
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, using PVA has problems related to productivity
There are also problems that the stability of the obtained latex, especially the long-term stability is insufficient, and the viscosity increases

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aqueous synthetic resin emulsion, re-emulsifiable emulion powder, and adhesive composition containing the same
  • Aqueous synthetic resin emulsion, re-emulsifiable emulion powder, and adhesive composition containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0183] To 200 parts of latex 1, add the following three components that have been mixed together in advance: 8 parts of partially saponified PVA ("Gohsenol GM 14S (trade name)" with an average degree of polymerization of 1400 and a degree of saponification of 88 mol %, synthesized in Japan Kagaku Kogyo Co., Ltd.), 45 parts of calcium carbonate as a filler, and 2.5 parts of hydroxyethylcellulose. The prepared mixture was fully stirred, and 27 parts of water was additionally added to adjust the viscosity of the mixture to 50000-60000. Thus, an adhesive composition for wood parts / wooden materials is obtained.

Embodiment 2～4

[0185] In the same manner as in Example 1, latexes 2 to 4 were used to obtain adhesive compositions for wood parts / wooden materials. The amount of water to be added later is adjusted according to the viscosity (50000 to 60000 mPa·s (Brookfield viscometer, 10 rpm, 23°C)) of the adhesive composition for wood parts / wooden materials to be obtained.

Embodiment 5

[0187] To 110 parts of water was added the following four ingredients which had been mixed together beforehand: 100 parts of latex powder 1 from latex 1, 8 parts of partially saponified PVA with an average degree of polymerization of 1400 and an average degree of saponification of 88 mole % (" Gohsenol GM 14S (trade name)", manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), 45 parts of calcium carbonate as a filler, and 2.5 parts of hydroxyethylcellulose. The four ingredients were added such that no powder lumps formed. The resulting mixture is thoroughly mixed to obtain an adhesive composition for wood parts / wooden materials. The amount of water to be added later is adjusted according to the viscosity (50,000 to 60,000 mPa·s (Brookfield viscometer, 10 rpm, 23° C.)) of the adhesive composition for wood parts / wooden materials to be obtained.

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
Viscosityaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides an aqueous synthetic resin emulsion which can form a film excellent in water resistance, hot water resistance, boiling resistance, toughness and durability; a re-emulsifiable emulsion powder; an aqueous synthetic resin emulsion prepared by re-emulsifying the powder; and an adhesive composition. An aqueous synthetic resin emulsion which contains a synthetic resin dispersed therein in a state stabilized with a polyvinyl alcohol resin (a) having 1,2-diol units in side chains, where the synthetic resin comprises at least 30wt% (based on the whole of the monomer units) of units derived from one or more hydrophobic monomers exhibiting solubilities of 0.1% or below in water at 20 DEG C, the hydrophobic monomers containing a styrenic monomer; a re-emulsifiable emulsion powder; and an aqueous synthetic resin emulsion prepared by re-emulsifying the power.

Description

technical field [0001] The present invention relates to aqueous synthetic resin latex and re-emulsifiable latex powder. More specifically, the present invention relates to aqueous synthetic resin emulsions and re-emulsifiable emulsion powders which form films having excellent water resistance, warm water resistance, boiling resistance, and long-term durability. They can be used for a variety of purposes including, inter alia, adhesives for wood parts or wooden materials or for paper and the like, inorganic finishing materials, coating materials, and admixtures for hydraulic materials such as cement and gypsum. Background technique [0002] In order to impart mechanical stability and freeze stability to aqueous latexes, polyvinyl alcohol (often abbreviated hereinafter as PVA) is conventionally used as protective colloid. PVA is used to increase the mechanical and freeze stability of the latex. However, especially when primarily polymerizing hydrophobic monomers, it often ha...

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
IPC IPC(8): C08L25/02C08F2/26C09J125/08C09J129/04
CPCC08L29/04C08L25/04C08L2205/03C08F261/04C08L33/08C09J133/08C08L1/08C09J125/14C08F2/24C08L2666/04
Inventor 菅谷护西桥洋一郎岩崎宽之
Owner THE NIPPON SYNTHETIC CHEM IND CO LTD