IP Library › Granted Patent US 8,354,475
Granted Patent B2
US 8,354,475 · App. 12/740,169 · Granted Jan 15, 2013

Epoxy-phenolic resins co-dispersions

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Quick Facts
Patent No.
US 8,354,475
App. No.
12/740,169
Granted
Jan 15, 2013
Kind
B2
Abstract

An organic solvent free process to make an aqueous co-dispersion of epoxy resins and at least phenolic novolac resins is reported. The compositions of such co-dispersions are based on blends of epoxy resins and at least a phenolic novolac resin within the profile viscosity versus temperature in the ranges from 1 500 000 to 300 mPas at 80° C. and 10 000 to 20 mPas at 120° C.

Claims (8)

1. A process to make an organic solvent free aqueous co-dispersion of epoxy resins and phenolic novolac resins, the organic solvent free process comprising the steps of:

(a) heating the epoxy resins to a temperature ranging from 80° C. to 120° C.;

(b) at a temperature below 100° C., adding a surface active agent and an inversion water quantity; and

(c) at a temperature below 100° C., adding the phenolic novolac resins and dilution water.

2. The process of claim 1 , wherein a blend of the epoxy and phenolic novolac resins has a melt viscosity range of 1 500 000 to 300 mPas at 80° C. and 10 000 to 20 mPas at 120° C.

3. The process of claim 1 , wherein a blend of the epoxy and phenolic novolac resins has a melt viscosity range of 250 000 to 100 mPas at 90° C. and 20 000 to 30 mPas at 110° C.

4. The process of claim 1 , wherein the surface active agent is a polymer with free hydroxyl groups.

5. The process of claim 1 , wherein the surface active agent is a polymer based on partially hydrolyzed polyvinyl alcohol.

Assignments (18)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2022
From: HEXION INC.
To: WESTLAKE EPOXY INC.
Reel/Frame 061611/0876 →
PARTIAL TERMINATION AND RELEASE OF SECURITY INTEREST IN SPECIFIED PATENTS (ABL) Recorded Feb 1, 2022
From: JPMORGAN CHASE BANK, N.A.
To: HEXION INC.
Reel/Frame 058932/0915 →
PARTIAL TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS (TERM LOAN) Recorded Feb 1, 2022
From: JPMORGAN CHASE BANK, N.A.
To: HEXION INC.
Reel/Frame 058932/0923 →
PATENT SECURITY INTEREST (ABL) Recorded Jul 12, 2019
From: HEXION INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 049740/0770 →
PATENT SECURITY INTEREST (TERM LOAN) Recorded Jul 12, 2019
From: HEXION INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 049741/0425 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (030146/0970) Recorded Jul 9, 2019
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
To: HEXION INC. (FORMERLY KNOWN AS MOMENTIVE SPECIALTY CHEMICALS INC.)
Reel/Frame 049706/0264 →
PATENT SECURITY INTEREST ASSIGNMENT AGREEMENT Recorded Apr 3, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS THE PRIOR COLLATERAL AGENT
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS THE CURRENT COLLATERAL AGENT
Reel/Frame 048788/0617 →
RELEASE OF SECURITY INTEREST Recorded Feb 23, 2017
From: WILMINGTON TRUST, NATIONAL ASSOCIATION (SUCCESSOR BY MERGER TO WILMINGTON TRUST FSB), AS COLLATERAL AGENT
To: HEXION INC. (FORMERLY KNOWN AS HEXION SPECIALTY CHEMICALS INC.)
Reel/Frame 041792/0698 →
SECURITY INTEREST Recorded Feb 13, 2017
From: HEXION INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 041693/0888 →
CHANGE OF NAME Recorded Feb 3, 2015
From: MOMENTIVE SPECIALTY CHEMICALS INC.
To: HEXION INC.
Reel/Frame 034882/0816 →
PATENT SECURITY AGREEMENT Recorded Apr 3, 2013
From: MOMENTIVE SPECIALTY CHEMICALS INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 030146/0946 →
PATENT SECURITY AGREEMENT Recorded Apr 3, 2013
From: MOMENTIVE SPECIALTY CHEMICALS INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 030146/0970 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS Recorded Mar 28, 2013
From: JPMORGAN CHASE BANK, N.A.
To: MOMENTIVE SPECIALTY CHEMICALS INC. (F/K/A HEXION SPECIALTY CHEMICALS, INC.)
Reel/Frame 030111/0021 →
CHANGE OF NAME Recorded Mar 5, 2012
From: HEXION SPECIALTY CHEMICALS, INC.
To: MOMENTIVE SPECIALTY CHEMICALS INC.
Reel/Frame 027808/0408 →
PATENT SECURITY AGREEMENT Recorded Oct 1, 2010
From: HEXION SPECIALTY CHEMICALS, INC.
To: WILMINGTON TRUST COMPANY, AS COLLATERAL AGENT
Reel/Frame 025079/0760 →
PATENT SECURITY AGREEMENT Recorded Sep 29, 2010
From: HEXION SPECIALTY CHEMICALS, INC.
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 025063/0776 →
SECURITY AGREEMENT Recorded Sep 27, 2010
From: HEXION SPECIALTY CHEMICALS, INC.
To: JPMORGAN CHASE BANK, N.A., AS APPLICABLE FIRST LIEN REPRESENTATIVE
Reel/Frame 025047/0031 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2010
From: DE VELDER, HELGA; LEROY, ALAIN
To: HEXION SPECIALTY CHEMICALS, INC.
Reel/Frame 024615/0141 →