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Robin E Tirpak

from Durham, NC
Age ~67
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Also known as:
Robin Dr Tirpak, Robin Edward Tirpak, Robin M Tirpak, Megan Tirpak, Robin Tripak
Related to:
June Tirpak, 68
Connected to:
Amy B Tirpak, 56Cheryl J Tirpak, 39Debra A Tirpak, 62Edward Tirpak, 98Emily M Tirpak, 77Kathleen P Tirpak, 73Michelle Tirpak, 47Paula J Tirpak, 61Richard P Tirpak, 65Roxanne M Tirpak, 66

Robin Tirpak Phones & Addresses

  • Durham, NC
  • 144 Dallavia Ct, Morrisville, NC 27560 (919) 462-8254 (919) 469-6632
  • Cary, NC
  • Wheeling, WV
  • Dewitt, MI

Work

Company: Lord corporation Jul 2007 to Jan 2009 Position: Global chemical technology coordinator

Education

Degree: Ph.D. School / High School: Michigan State University 1978 to 1982 Specialities: Organic Chemistry

Industries

Chemicals

Resumes

Resumes

Robin Tirpak Photo 1

Robin Tirpak

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Location:
Raleigh-Durham, North Carolina Area
Industry:
Chemicals
Work:
Lord Corporation Jul 2007 - Jan 2009
Global Chemical Technology Coordinator
Lord Corporation Sep 1996 - Jul 2007
Product Development Group Manager
Bayer Corporation 1982 - 1996
Research Chemist
Education:
Michigan State University 1978 - 1982
Ph.D., Organic Chemistry The Ohio State University
B.S., Chemistry

Publications

Us Patents

Aqueous Compositions Containing An At Least Partially Blocked Polyisocyanates And A Trimerization Catalyst And Coatings And Binders Prepared Therefrom

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US Patent:
51570742, Oct 20, 1992
Filed:
Jul 23, 1991
Appl. No.:
7/734384
Inventors:
Sidney H. Metzger - Pittsburgh PA
Robin E. Tirpak - Wheeling WV
James W. Rosthauser - Glendale WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08L 7504
US Classification:
524589
Abstract:
The present invention relates to an aqueous composition containing a) an at least partially blocked, aqueously dispersed polyisocyanate i) having an isocyanate content prior to blocking of at least 12% by weight, based on the weight of the unblocked polyisocyanate and ii) containing at least 2 equivalent percent, based on the total equivalents of isocyanate groups, of blocked isocyanate groups, and b) a trimerization catalyst. The present invention also relates to coatings or binders prepared by heating the aqueous compositions to evaporate water and initiate trimerization.

Process For Preparing And Optionally Chain Extending Aqueous Polyisocyanate Dispersions Using Static Mixers

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US Patent:
52217108, Jun 22, 1993
Filed:
Mar 28, 1991
Appl. No.:
7/677002
Inventors:
Peter H. Markusch - McMurray PA
Arthur W. Mason - Sisterville WV
Robin E. Tirpak - Wheeling WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08J 300
C08K 320
C08L 7500
C08G 1832
US Classification:
524591
Abstract:
The present invention is directed to a process for preparing an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0. 5% by weight by a) introducing an aqueous medium into a static mixer, b) introducing a polyisocyanate into the static mixer, c) mixing the polyisocyanate with the aqueous medium in the static mixer and d) withdrawing the aqueous polyisocyanate dispersion from the outlet of the static mixer, e) introducing the aqueous polyisocyanate dispersion into the inlet of a second static mixer, f) introducing into the same of a different inlet of the second static mixer a chain extender containing at least a primary or secondary hydroxy monoamine and/or a polyamine having primary and/or a polyamine having primary and/or secondary amino groups g) mixing the chain extender with the aqueous polyisocyanate dispersion in the second static mixer, h) withdrawing the reacting mixture of the aqueous polyisocyanate dispersion and the chain extender from the outlet of the second static mixer and i) allowing the polyisocyanate and chain extender to react to form the aqueous modified polyisocyanate dispersion.

Aqueous Two-Component Polyurethane-Forming Compositions And A Process For Their Preparation

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US Patent:
53728750, Dec 13, 1994
Filed:
Feb 5, 1993
Appl. No.:
8/014304
Inventors:
Peter H. Markusch - McMurray PA
Robin E. Tirpak - Wheeling WV
James W. Rosthauser - Glendale WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
B32B 2740
C08K 320
US Classification:
428228
Abstract:
The present invention is directed to a process for the preparation of an aqueous two-component polyurethane-forming composition by a) dispersing in water a polyisocyanate which has an isocyanate content of at least 12% by weight and b) also blending with water either before, during or after dispersing the polyisocyanate, a polyhydroxyl compound which i) has a molecular weight of 62 to 10,000, ii) contains at least two hydroxyl groups, iii) is water soluble or water dispersible, iv) does not contain urea or urethane groups and v) is selected from the group of polyesters, polylactones, polycarbonates, polyethers, polythioethers, polyacetals, polyether esters, polyester amides and polyamides, wherein the equivalent ratio of isocyanate groups to aqueous groups is 0. 8:1 to 6:1. The present invention is also directed to the aqueous composition prepared by this process and to its use as a binder for fiberglass.

Stable, Aqueous Dispersions Of Polyurethane-Ureas

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US Patent:
47014806, Oct 20, 1987
Filed:
Sep 23, 1985
Appl. No.:
6/778836
Inventors:
Peter H. Markusch - McMurray PA
James W. Rosthauser - Imperial PA
Robin E. Tirpak - Wheeling WV
Assignee:
Mobay Corporation - Pittsburgh PA
International Classification:
C08J 302
C08L 7504
US Classification:
523340
Abstract:
The present invention is directed to a process for the preparation of aqueous polyurethane-urea dispersions with improved hydrolytic stability by (a) forming an aqueous polyurethane-urea dispersion, optionally by chain extending an aqueously dispersed isocyanate-terminated prepolymer, containing carboxylic acid groups neutralized with volatile organic bases, (b) converting the volatile, organic base-neutralized carboxylic acid groups to nonvolatile cation-neutralized carboxylate groups by adding alkali metal salts of organic or inorganic acids having a pKa greater than 0 to the aqueous polyurethane-urea dispersion of (a) in an amount sufficient to displace at least a portion of the volatile organic bases and, optionally, (c) removing the volatile organic bases by distillation, optionally under reduced pressure. The present invention is also directed to the products produced by this process.

Reactive Aqueous Polyurea Dispersions Prepared By An Emulsion Polymerization Process

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US Patent:
53589971, Oct 25, 1994
Filed:
May 7, 1992
Appl. No.:
7/879828
Inventors:
James W. Rosthauser - Glen Dale WV
Robin E. Tirpak - Wheeling WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08J 320
C08K 320
C08L 7500
US Classification:
524591
Abstract:
The present invention is directed to a process for the preparation of an aqueous polyurea dispersion containing blocked isocyanate groups and unreacted isocyanate-reactive groups by (I) dispersing in water a) a polyisocyanate b) a monofunctional blocking agent which is more reactive with isocyanate groups than water and c) an amine component II) reacting the polyisocyanate with components b) and c) to form an aqueous polyurea dispersion.

Aqueous Polyurea Dispersions Prepared By An Emulsion Polymerization Process

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US Patent:
52122301, May 18, 1993
Filed:
Mar 28, 1991
Appl. No.:
7/677011
Inventors:
Robin E. Tirpak - Wheeling WV
Peter H. Markusch - McMurray PA
Ashok M. Sarpeshkar - New Martinsville WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08J 300
C08K 320
C08L 7500
C08G 1800
US Classification:
524589
Abstract:
The present invention is directed to a process for the preparation of an aqueous polyurea dispersion by a) dispersing in water at an NCO:NH equivalent ratio of 0. 5:1. 0 to 2. 0:1. 0 i) a polyisocyanate which has an average functionality of 1. 5 to 4. 0 and an isocyanate content of at least 12% by weight and ii) a polyamine having at least two primary and/or secondary amino groups and a molecular weight of at least at an NCO:OH equivalent ratio of 0. 5:1. 0 to 2. 0:1. 01000 and b) allowing the polyisocyanate and polyamine to react to form an aqueous polyurea dispersion. The present invention is also directed to the aqueous polyurea dispersion prepared by this process.

Aqueous Polyurea Dispersions Prepared By An Emulsion Polymerization Process

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US Patent:
53670175, Nov 22, 1994
Filed:
May 1, 1992
Appl. No.:
7/877686
Inventors:
James W. Rosthauser - Glendale WV
Robin E. Tirpak - Wheeling WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08J 300
C08K 320
C08L 7500
US Classification:
524589
Abstract:
The present invention is directed to a aqueous polyurea dispersion for the preparation of an aqueous polyurea dispersion by I) dispersing in water at an NCO:NH equivalent ratio of 0. 5:1. 0 to 2. 0:1. 0 a) a polyisocyanate which has an average functionality of 1. 5 to 4. 0 and an isocyanate content of at least 12% by weight and b) a polyamine component containing i) 30 to 70 mole percent of a polyamine having at least two primary and/or secondary amino groups and a molecular weight of at least 1000 and ii) 30 to 70 mole percent of a polyamine having at least two primary and/or secondary amino groups, a molecular weight of less than 400 and at least one anionic or potential anionic group and II) allowing the polyisocyanate and polyamine component to react to form an aqueous polyurea dispersion. The present invention is also directed to the aqueous polyurea dispersion prepared by this aqueous polyurea dispersion.

Aqueous Polyurethane Dispersions And Adhesives Based Thereon

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US Patent:
51244004, Jun 23, 1992
Filed:
Sep 25, 1989
Appl. No.:
7/412046
Inventors:
Robin E. Tirpak - Wheeling WV
Robert L. Cline - Paden City WV
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08L 7512
C08G 1832
C09J17512
US Classification:
524591
Abstract:
The invention is related to an adhesive comprising a stable, fine particle size aqueous dispersion of polyurethane-urea which is the reaction product of an isocyanate-terminated prepolymer with an amine-containing chain extending agent which is characterized in that the functionality of said agent is about 2. 05 to about 2. 50. The adhesive was surprisingly and unexpectedly found to exhibit an increased softening point temperature as compared to the corresponding temperature of related adhesives which contains no such chain extending agent.
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Robin E Tirpak from Durham, NC, age ~67 Get Report