Phosphorus-containing phenolic resin, resin composition and cured product

A technology of phenolic resin and its meaning, applied in the field of phosphorus-containing phenolic resin and curable resin composition, can solve the problem of low adhesiveness, poor adhesiveness and heat-resistant reliability of epoxy resin cured products, and difficult to remove completely. Solvent and other problems, to achieve the effect of good compatibility and excellent flame retardancy
CN102532490BActive Publication Date: 2016-01-20NIPPON STEEL CHEM &MATERIAL CO LTD
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NIPPON STEEL CHEM &MATERIAL CO LTD
Publication Date
2016-01-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

PROBLEM TO BE SOLVED: To provide a phosphorus-containing phenol resin that can serve as a curing agent for an epoxy resin, can be easily dissolved in an organic solvent, has good compatibility with an epoxy resin, and is superior in workability, curability, and moldability. SOLUTION: The novel phosphorus-containing phenol resin having a number average molecular weight of 500-5,000 is obtained by reacting an epoxy resin with a phosphorus-containing phenol compound having a specific structure such as 10-(2, 5-dihydroxyphenyl)-10H-9-oxa-10-phosphaphenanthrene-10-oxide and a di- or higher functional phosphorous-free phenol compound. COPYRIGHT: (C)2012,JPO&INPIT
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a flame-retardant phosphorus-containing phenolic resin, a curable resin composition containing the phosphorus-containing phenolic resin, and a cured product of the resin composition. Background technique

[0002] Utilizing its excellent heat resistance, adhesiveness, mechanical properties, electrical properties, etc., phenolic resins are used as molding materials for various substrates, adhesives for friction materials, adhesives for abrasive materials, adhesives for wood, Adhesives for casting molds, adhesives for laminated materials, coating agents, epoxy resin curing agents, etc. are widely used.

[0003] In particular, when used as a laminated material for electric / electronic equipment, it is strongly required to impart flame retardancy in order to prevent combustion and control smoke emission in a fire. As a flame retardant method for resins for laminates, conventionally, bromine-based flame retardants, nitrogen-b...

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