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Acid anhydride modified epoxy acrylic resin, alkali-developable high-heat-resistance polyurethane resin and solder resist ink thereof

A technology of epoxy acrylic and polyurethane resin, which is applied in ink, application, household appliances, etc. It can solve the problems of chemical resistance, poor image development, and inability to meet the requirements of polyurethane, and achieve improved heat resistance, excellent heat resistance, good overall performance

Active Publication Date: 2019-12-13
SHANGHAI SHOWA HIGHPOLYMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical resistance and image development of the above resins are poor, which cannot meet the needs of polyurethane applications.

Method used

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  • Acid anhydride modified epoxy acrylic resin, alkali-developable high-heat-resistance polyurethane resin and solder resist ink thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This embodiment provides an anhydride-modified epoxy acrylic resin, which is specifically prepared by the following steps:

[0063] Add raw materials in stages to react:

[0064] The first stage: 100 parts of bisphenol A novolac epoxy resin (epoxy equivalent: 190-200), 34 parts of dimethylol carboxylic acid, 64 parts of monobasic acid, 100 parts of diluent, 4 parts of Inhibitor, 4 parts of triphenylphosphine, the temperature is raised to 125°C, the acid value is less than 5KOHmg / g, and the temperature is lowered to 105°C.

[0065] The second stage: Add 68 parts of acid anhydride to the reaction system, keep the temperature at 105°C, detect by infrared until the anhydride peak disappears, and the reaction is completed, and the properties of the anhydride-modified epoxy acrylic resin are as follows: the acid value is 33-38KOHmg / g, The dynamic viscosity is 65-75dpa.s, the weight average molecular weight is 4000-5000, and the solid content is 50-70%.

[0066] Among them, ...

Embodiment 2

[0068] This embodiment provides an anhydride-modified epoxy acrylic resin, which is specifically prepared by the following steps:

[0069] Add raw materials in stages to react:

[0070] The first stage: 100 parts of bisphenol A novolac epoxy resin (epoxy equivalent: 190-200), 40 parts of dimethylol carboxylic acid, 58 parts of monobasic acid, 110 parts of diluent, 6 parts of The polymerization inhibitor and 6 parts of triphenylphosphine are heated up to 130°C, the acid value is less than 5KOHmg / g, and the temperature is lowered to 110°C.

[0071] The second stage: Add 75 parts of acid anhydride to the reaction system, keep the temperature at 110°C, detect by infrared until the anhydride peak disappears, and the reaction is completed, and the properties of the anhydride-modified epoxy acrylic resin are as follows: the acid value is 36-40KOHmg / g, The dynamic viscosity is 60-100dpa.s, the weight average molecular weight is 6000-7000, and the solid content is 50-70%.

[0072] Am...

Embodiment 3

[0074] This embodiment provides an anhydride-modified epoxy acrylic resin, which is specifically prepared by the following steps:

[0075] Add raw materials in stages to react:

[0076] The first stage: 100 parts of bisphenol A novolac epoxy resin (epoxy equivalent: 190-200), 30 parts of dimethylol carboxylic acid, 68 parts of monobasic acid, 90 parts of diluent, 2 parts of The polymerization inhibitor and 2 parts of triphenylphosphine are heated up to 120°C, the acid value is less than 5KOHmg / g, and the temperature is lowered to 100°C.

[0077] The second stage: Add 60 parts of acid anhydride to the reaction system, keep the temperature at 100°C, detect by infrared until the anhydride peak disappears, and the reaction is completed, and the properties of the anhydride-modified epoxy acrylic resin are as follows: the acid value is 30-34KOHmg / g, The dynamic viscosity is 50-70dpa.s, the weight average molecular weight is 5000-6000, and the solid content is 50-70%.

[0078] Amon...

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly discloses anhydride modified epoxy acrylic resin, alkali development high-heat-resistance polyurethane resin and solder resist ink thereof. The anhydride modified epoxy acrylic resin provided by the invention is prepared by jointly modifying epoxy resin with dimethylolcarboxylic acid and monobasic acid. According to the invention, the anhydride modified epoxy acrylic resin has the advantages of excellent heat resistance, chemical resistance, developability and the like, and is introduced into a polyurethane chain segment in a graft copolymerization manner to modify polyurethane, so that the epoxy acrylic modified polyurethane resin with heat resistance, chemical resistance, flexibility and developability is prepared. The solder resist ink containing the epoxy acrylic acid modified polyurethane resin is heat-resistant and chemical-resistant, has excellent developability and flexibility, and shows obvious performance advantages in practical application. In addition, the anhydride modified epoxy acrylic resin and the epoxy acrylic modified polyurethane resin provided by the invention are simple inpreparation method and suitable for industrial application.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an anhydride-modified epoxy acrylic resin, an alkali-developing highly heat-resistant modified polyurethane resin containing the resin and a solder resist ink. Background technique [0002] Epoxy resin refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to open the ring, cure and crosslink to form a network structure, and it is a widely used thermosetting resin. Modifying it can improve its comprehensive performance to meet the needs of more application fields. [0003] Polyurethane material is the abbreviation of polyurethane, and its English name is polyurethane. It is an emerging organic polymer material. It is widely used in light industry, chemical industry, electronics, textile, medical tr...

Claims

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Application Information

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IPC IPC(8): C08G59/17C08G59/16C08G18/75C08G18/67C08G18/66C08G18/58C08G18/44C08G18/34C09D11/101C09D11/102
CPCC08G59/1466C08G59/1455C08G18/755C08G18/6659C08G18/672C08G18/581C08G18/44C08G18/4045C08G18/348C09D11/101C09D11/102
Inventor 王亮
Owner SHANGHAI SHOWA HIGHPOLYMER CO LTD
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