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

Curable composition

A composition, technology of water-based composition, applied in the direction of adhesive types, ester copolymer adhesives, manufacturing tools, etc.

Active Publication Date: 2009-02-25
ROHM & HAAS CO
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sensitivity to water and humidity also has its disadvantages among other uses of these adhesives

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
  • Curable composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Comparative reference polymer 1: 9% SHP

[0047] Into a five-liter four-necked flask equipped with a mechanical stirrer, condenser, nitrogen purge, thermometer, and inlet for gradually adding monomer, initiator, and sodium hypophosphite ("SHP") solution, 1217.7 g of deionized ( DI) Water. 2500 grams of sodium hypophosphite monohydrate was dissolved in 3056 grams of deionized water to prepare a chain regulator stock solution. A total of 406.99 grams were removed from the stock solution, 30% by weight (122.1 grams) of this solution was added to the water material and heated to 93°C. The remaining 70% by weight (284.89 grams) of the chain regulator solution was used as a co-addition solution. A monomer material of 2034.9 grams of glacial acrylic acid was prepared. An initiator solution was prepared by dissolving 20.35 grams of sodium persulfate in 45.3 grams of DI water.

[0048] Within 2 hours, add acrylic acid, sodium persulfate and sodium hypophosphite materials to the stir...

Embodiment 2

[0051] The oligomer of the present invention 2: 14% SHP

[0052] Repeat the steps of Example 1, the difference is that the amount of DI water added to the reactor is 72.4 g, and the amount of the chain regulator stock solution added to the reactor water material and co-added material is 189.2 g.

[0053] The solid content of the obtained polymer is 53.29%, the pH value is 2.96, the viscosity is 380 centipoise, and the residual monomer content is less than 0.01%. M measured by GPC n Is 830.

Embodiment 3

[0055] The oligomer of the present invention 3: 18% SHP

[0056] Into a three-liter four-necked flask with mechanical stirrer, condenser, nitrogen purge, thermometer, and inlets for gradually adding monomer, initiator, and sodium hypophosphite solution, 710 grams of deionized (DI) water was added. 2500 grams of sodium hypophosphite monohydrate was dissolved in 3056 grams of deionized water to prepare a chain regulator stock solution. A total of 486.4 grams was removed from the stock solution, and half of the solution (243.2 grams) was added to the water material and heated to 93°C. The remaining half of the chain regulator solution is used as a co-addition solution. A monomer material of 1216 grams of glacial acrylic acid was prepared. An initiator solution was prepared by dissolving 12.16 grams of sodium persulfate in 30.7 grams of DI water.

[0057] Within 2 hours, add acrylic acid, sodium persulfate and sodium hypophosphite materials to the stirring water materials at a constan...

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

No PUM Login to View More

Abstract

Compositions comprising polycarboxy oligomers or co-oligomers and polyols.

Description

Technical field [0001] The present invention relates to a formaldehyde-free curable aqueous composition comprising a small molecular weight carboxyl oligomer or co-oligomer and a polyol. The composition also preferably includes a phosphorus-containing accelerator, and the pH of the composition does not exceed 3.5. The resulting composition is particularly difficult to process when used as a binder for glass fiber products, and the resulting product has excellent recovery rate and rigidity. Background technique [0002] Because formaldehyde usually causes health and environmental problems, as well as existing and proposed regulations on reducing and eliminating formaldehyde, there is an urgent need for curable water-based compositions with very low or no formaldehyde in the manufacture of many products. There are formaldehyde-free systems that involve reacting polycarboxylic acid polymers with hydroxyl-containing compounds. [0003] These binders can be used particularly effective...

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 Patents(China)
IPC IPC(8): C08F20/06C09J133/06C03B37/00
CPCC09D133/02C08L33/02C08K5/17C08L33/10C08L33/08C08K7/20C08K2003/324
Inventor W·C·芬奇唐迅
Owner ROHM & HAAS CO