Patent · US Active

Polymer composition and method of making the same

US8952121B2 · kind B2 · utility

4Cited by
5References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 6, 2012
Grant dateFeb 10, 2015
Priority date—
Expiry dateJun 6, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/24479
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A novel novolac prepared by acid catalyzed condensation between biphenols or bisphenofluorenes and fluorenone is presented. The polymers exhibit excellent oxidative thermal stability and high carbon content, suitable for dielectric, etch stop applications as spin-on material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.