Check patentability & draft patents in minutes with Patsnap Eureka AI!

Photocurable thermosetting resin composition, dry film, cured product and printed wiring board

A technology of curable resin and photosensitive resin, applied in secondary processing of printed circuits, optics, opto-mechanical equipment, etc., can solve the problems of reduced alkali developability and brittleness of cured products, and achieve the effect of excellent insulation reliability

Pending Publication Date: 2020-11-03
TAIYO INK MFG +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even in the photosensitive resins of these systems, if the heat resistance is overemphasized, the alkali developability may decrease, or the cured product may become brittle, and there is room for improvement in the balance of properties such as heat resistance and alkali developability

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
  • Photocurable thermosetting resin composition, dry film, cured product and printed wiring board
  • Photocurable thermosetting resin composition, dry film, cured product and printed wiring board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0156] Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to an Example. In addition, the following "part" and "%" are all based on mass unless otherwise specified.

[0157] The radically polymerizable polymers of Synthesis Examples 1 to 7 shown below were synthesized. It should be noted that Synthesis Examples 6 and 7 are radically polymerizable polymers other than the radically polymerizable polymer contained in the (A) carboxyl group-containing photosensitive resin in the curable resin composition of the present invention, that is, It is a radically polymerizable polymer used in a comparative example.

Synthetic example 1

[0159] 81.5 parts of carbitol acetates were put into the detachable flask with the condenser used as a reaction tank, and it heated up to 80 degreeC after replacing with nitrogen. On the other hand, drop in respectively: 30 parts of N-phenylmaleimide and 120 parts of carbitol acetate were mixed in the dropping tank 1, and 29 parts of styrene were mixed in the dropping tank 2. 20 parts of 2-hydroxyethyl methacrylate, 21 parts of acrylic acid and 10.6 parts of carbitol acetate were mixed in the dropping tank 3, and the mixture was mixed in the dropping tank 4 as 10 parts of LUPEROX 11 (trade name; ARKEMA Yoshitomi, Ltd. product, hydrocarbon solution containing 70% tert-butyl peroxypivalate) and 21.2 parts of carbitol acetate as a polymerization initiator. While maintaining the reaction temperature at 80°C, it was added dropwise from the dropping tanks 1, 2, and 4 over 3 hours, and from the dropping tank 3 over 2.5 hours. After completion of the dropwise addition, the reaction w...

Synthetic example 2

[0163] 81.5 parts of propylene glycol monomethyl ether acetates were put into the detachable flask with the condenser used as a reaction tank, and it heated up to 80 degreeC after replacing with nitrogen. On the other hand, put in separately: 30 parts of N-phenylmaleimide and 120 parts of propylene glycol monomethyl ether acetate were mixed in the dropping tank 1, and styrene was mixed in the dropping tank 2. 28.5 parts, 20 parts of 2-hydroxyethyl methacrylate, mixed with 21.5 parts of acrylic acid, 10.6 parts of propylene glycol monomethyl ether acetate in the dropping tank 3, mixed with 10 parts of LUPEROX 11 as a polymerization initiator and 21.2 parts of propylene glycol monomethyl ether acetate. While maintaining the reaction temperature at 80°C, it was added dropwise from the dropping tanks 1, 2, and 4 over 3 hours, and from the dropping tank 3 over 2.5 hours. After completion of the dropwise addition, the reaction was further continued at 80° C. for 30 minutes. Therea...

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
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Login to View More

Abstract

A curable resin composition contains a carboxyl group-containing photosensitive resin, a photopolymerization initiator and a thermosetting compound. The carboxyl group-containing photosensitive resincontains a radical-polymerizable polymer. The radical-polymerizable polymer contains constituent units derived from a maleimide-based monomer, constituent units derived from an unsaturated carboxylicacid monomer having no ester bond and constituent units derived from a hydroxyl group-containing monomer as essential units in a polymer that is a base polymer. The radical-polymerizable polymer has astructure obtained by reacting a carboxyl group in the polymer that is a base polymer with a monomer having a functional group capable of reacting with the carboxyl group.

Description

technical field [0001] The present invention relates to a curable resin composition containing a radically polymerizable polymer soluble in an aqueous alkaline solution, its dry film and cured product, and an electronic component. Background technique [0002] In the manufacture of printed wiring boards, a curable resin composition is generally used in the formation of a permanent coating such as a solder resist layer. As such curable resin compositions, dry film-type compositions and liquid compositions have been developed. In addition, the curable resin composition can be microfabricated by applying the principle of a photographic method (photolithography method). In recent years, from the viewpoint of environmental measures, an alkali-developing type capable of developing in a dilute weak alkaline aqueous solution has become the mainstream. [0003] The above-mentioned curable resin composition usually includes a prepolymer having an unsaturated double bond, a polymeriz...

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): G03F7/038C08F2/50G03F7/004H05K3/28
CPCH05K3/28G03F7/038C08F2/50G03F7/004G03F7/028
Inventor 工藤知哉冈田和也植田千穗岛田沙和子伊藤信人吉田雅年前田顺启大槻信章
Owner TAIYO INK MFG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com