Invention Grant
- Patent Title: Varnish, prepreg, and substrate thereof
- Patent Title (中): 清漆，预浸料及其底材
-
Application No.: US12605368Application Date: 2009-10-25
-
Publication No.: US08088490B2Publication Date: 2012-01-03
- Inventor: Li-Chun Chen
- Applicant: Li-Chun Chen
- Applicant Address: TW Taoyuan
- Assignee: Iteq Corporation
- Current Assignee: Iteq Corporation
- Current Assignee Address: TW Taoyuan
- Agency: Pai Patent & Trademark Law Firm
- Agent Chao-Chang David Pai
- Main IPC: B32B27/38
- IPC: B32B27/38 ; B32B27/04 ; C08L63/00 ; C08K3/22 ; C08K3/36 ; C08K5/49
Abstract:
A halogen-free varnish includes (A) resin, (B) curing agent, (C) flame inhibitor (flame-retarding agent), (D) accelerator and (E) additives. Resin of (A) has novolac epoxy resin, DOPO-CNE and DOPO-HQ-CNE. Curing agent of (B) includes Benzoxazine resin and phenol novolac resin. Glass fabric cloth is dipped into the halogen-free varnish so as to form a prepreg with better thermal stability, anti-flammability, low absorbent ability and higher curing rate. Furthermore, the prepreg has more toughness.
Public/Granted literature
- US20110097587A1 VARNISH, PREPREG, AND SUBSTRATE THEREOF Public/Granted day:2011-04-28
Information query
