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Plasticizing agent and polyurethane solidifiable composition

A composition, polyurethane technology, applied in the field of plasticizers, can solve the problems of a lot of trouble in preparation work, reducing viscosity, and high viscosity

Inactive Publication Date: 2003-01-01
ASAHI GLASS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since fillers such as calcium carbonate are mixed with it, the viscosity becomes higher, thereby poor processability, and it is necessary to add 3-20% by mass of organic solvents in order to reduce the viscosity, thus, there will also be the above-mentioned use Problems with Organic Solvents
[0009] On the other hand, the main agent and curing agent of the two-component ultra-fast curing spray type composition have high viscosity at room temperature, thus, they must be heated so that the temperature is controlled at 50-70°C during spraying, and the preparatory work is also necessary. there will be a lot of trouble
In addition, for heating, it is necessary to control the temperature by insulating the material box and the pipe with a heater or heat insulating material, which makes the workability poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 17 parts by mass of polyoxypropylene triol with a molecular weight of 3000, 68 parts by mass of polyoxypropylene diol with a molecular weight of 2000 and 15 parts by mass of 2,4-TDI and 2,6-TDI (2,4-TDI / 2, The mass ratio of 6-TDI is 80 / 20) and the mixture is mixed and reacted (NCO ratio is 2.03) to make an isocyanate group-terminated polyurethane prepolymer with an isocyanate group content of 3.6% by mass as the main agent.

[0056] 7.30 parts by mass of 4,4'-methylenebis(2-chloroaniline) was dissolved in 21.04 parts by mass of polyoxypropylene glycol with a molecular weight of 2000, and 12.16 parts by mass of soybean oil Fatty acid methyl ester (viscosity at 20°C is 7.9mPa·s), 0.5 parts by mass of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate (TINUVIN765, produced by Ciba Specialty Chemicals ), 55 parts by mass of calcium carbonate, 3 parts by mass of pigment paste and 1 part by mass of lead 2-ethylhexanoate (lead content: 24% by mass) were mixed to prepare a curin...

Embodiment 2

[0059] 28.6 parts by mass of polyoxypropylene triol with a molecular weight of 6000 and 3.4 parts by mass of 4,4'-diphenylmethane diisocyanate were reacted (the NCO ratio was 1.9) to make an isocyanate group-terminated polyurethane prepolymer, and its isocyanate group The lump content was 1.65% by mass. 17 parts by mass of rice bran fatty acid methyl ester (viscosity at 20°C is 5.5mPa·s), 0.5 parts by mass of TINUVIN765, 45 parts by mass of calcium carbonate, 5.2 parts by mass of pigment paste and 0.3 parts by mass of bis(2-morpholine ethyl) ether and The one-component type polyurethane curable composition thus obtained is used as a waterproof paint.

Embodiment 3

[0061] 48 parts by mass of polyoxypropylene diol with a molecular weight of 2000, 15 parts by mass of methyl oleate (viscosity at 20°C is 6.3mPa·s), 33 parts by mass of 4,4'-diphenylmethane diisocyanate and 4 parts by mass of carbon Diimine-modified MDI reaction (NCO ratio is 6.08) is made into isocyanate group-terminated polyurethane prepolymer with an isocyanate group content of 10.3% by mass as the main agent.

[0062] 12 parts by mass of diethyltoluenediamine, 84 parts by mass of polyoxypropylene glycol with a molecular weight of 2000, 0.6 parts by mass of bis(2,2,6,6-tetramethyl-1-octyloxy-4- Piperidinyl) sebacate and 1,1-dimethyl ethyl hydroperoxide and the mixture of the reaction product of octane (TINUVIN123, Ciba Specialty Chemicals production), 3 mass parts pigment pastes and 0.5 mass parts 2-ethyl Hexanoate was mixed with a salt of 1,2-dimethylimidazole to obtain a curing agent.

[0063] The two-component type polyurethane curable composition composed of the above-...

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Abstract

A plasticizer for a urethane curable composition, which contains an ester (C) of a monocarboxylic acid (A) consisting of an unsaturated fatty acid having a carbon number of from 10 to 24 or a fatty acid mixture of the above unsaturated fatty acid with a saturated fatty acid, and a monool (B) having a carbon number of from 1 to 10.

Description

field of invention [0001] The present invention relates to a polyurethane curable composition, which has low viscosity at room temperature, thereby having excellent processability, which has excellent curing performance, excellent coating film appearance after curing and excellent coating film mechanical properties and weather resistance properties, the present invention also relates to plasticizers for the polyurethane curable composition. background of the invention [0002] The two-component type polyurethane curable composition is composed of a main agent containing an isocyanate group-terminated polyurethane prepolymer as the main component, a curing agent containing an active hydrogen compound as the main component, and an isocyanate group-containing polyurethane prepolymer as the main component. Composed of one-component type polyurethane curable compositions, utilizing the excellent elasticity of the compositions, they are widely used in construction fields such as w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08G18/10C08G18/12C08G71/04C08K5/101C08K5/3435C09D175/04
CPCC09D175/04C08G18/10C08K5/101C08G18/12C08G18/6685C08L75/04C08L2666/54C08G71/04
Inventor 龟村一郎松本幸夫今井田和典
Owner ASAHI GLASS CO LTD