Terry A Potter

US Patent:

52004899, Apr 6, 1993

Filed:

Feb 27, 1992

Appl. No.:

7/842866

Inventors:

Patricia B. Jacobs - Pittsburgh PA
Terry A. Potter - Beaver PA

Assignee:

Miles Inc. - Pittsburgh PA

International Classification:

C08G 1830

US Classification:

528 49

Abstract:

The present invention is directed to a polyisocyanate composition which is dispersible in water, has an average NCO functionality of 2 to 6 and contains a) a polyisocyanate adduct prepared from 1,6-hexamethylene diisocyanate or a mixture of hexamethylene diisocyanate with up to 70% by weight, based on the weight of the diisocyanates, of another diisocyanate and b) at least 10% by weight, based on the weight of the polyisocyanate adduct, of an emulsifier which is based on the reaction product of i) a monohydroxy functional polyether wherein the ethylene oxide portion of the polyether has a molecular weight of 200 to 1000 and the polyether has a total molecular weight of 200 to 1500 with ii) either a polyisocyanate adduct which corresponds to component a) or another polyisocyanate. The present invention is also directed to a composition which contains this polyisocyanate compositions and an aqueous resin containing isocyanate-reactive groups.

US Patent:

52584828, Nov 2, 1993

Filed:

Jun 12, 1992

Appl. No.:

7/897732

Inventors:

Patricia B. Jacobs - Pittsburgh PA
Terry A. Potter - Beaver PA
Richard R. Roesler - Wexford PA
Roger W. Rumer - Wexford PA

Assignee:

Miles Inc. - Pittsburgh PA

International Classification:

C08G 1830

US Classification:

528 49

Abstract:

The present invention is directed to a polyisocyanate mixture which i) has an NCO content of 10 to 47% by weight, ii) is prepared from a mixture of 1,6-hexamethylene diisocyanate and a cyclic organic diisocyanate having (cyclo)aliphatically-bound isocyanate groups in a molar ratio of 10:90 to 90:10 and iii) contains isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5, wherein the allophanate groups are formed from urethane groups which are based on the reaction product of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and a monoalcohol containing at least 1 carbon atom and having a molecular weight of up to 2500. The present invention is also directed to a process for the production of these polyisocyanate mixtures and to their use, optionally in blocked form, as an isocyanate component in two-component coating compositions.

US Patent:

61038490, Aug 15, 2000

Filed:

Jun 27, 1994

Appl. No.:

8/266290

Inventors:

Edward P. Squiller - Pittsburgh PA
James W. Rosthauser - Glen Dale WV
Peter H. Markusch - McMurray PA
Terry A. Potter - Beaver PA

Assignee:

Bayer Corporation - Pittsburgh PA

International Classification:

C08G 1880

US Classification:

528 45

Abstract:

Storage-stable, one-component polyurethane compositions which cure at elevated temperature are made up of (a) an isocyanate which has been blocked with a phenol or an oxime, (b) at least one compound selected from polyketimines, polyenamines and oxazolidines, and (c) a compound which generates water at elevated temperature. Components (a), (b) and (c) are used in amounts such that the equivalent ratio of a:b:c is from about 1. 0:0. 1:0. 5 to about 1:2:2.