William C Heath

US Patent:

20130331510, Dec 12, 2013

Filed:

Feb 14, 2012

Appl. No.:

13/985518

Inventors:

Harpreet Singh - Pearland TX, US
Michael J. Barnes - Acworth GA, US
William H. Heath - Lake Jackson TX, US
Amarnath Singh - Pearland TX, US

Assignee:

DOW GLOBAL TECHNOLOGIES LLC - Midland MI

International Classification:

C08G 64/02

US Classification:

524590, 525453

Abstract:

Embodiments of the invention generally relate to polyurethanes having resistance to hydrocarbons and articles made therefrom. In one embodiment, a hydrocarbon resistant polycarbonate elastomer containing article is provided. The hydrocarbon resistant polycarbonate elastomer is prepared from a reaction mixture comprising (a) one or more difunctional polycarbonate polyols comprising repeating units from one or more alkane diols having 2 to 20 carbon atoms with a number average molecular weight between 500 and 3,000, and (b) one or more organic polyisocyanate components, wherein the article is selected from filter caps, conduits, containers, seals, mechanical belts, liners, coatings, rollers and machine parts.

US Patent:

20180346637, Dec 6, 2018

Filed:

Nov 9, 2016

Appl. No.:

15/774827

Inventors:

- Midland MI, US
Dan Yu - Richmond TX, US
Daniel A. Aguilar - Lake Jackson TX, US
Amber Marie Stephenson - Lake Jackson TX, US
William H. Heath - Lake Jackson TX, US
Shouren Ge - Lake Jackson TX, US

International Classification:

C08G 18/48
C08G 18/76
C08G 18/10
C09J 175/08
C09D 175/08

Abstract:

A cured composition including a reaction product of a mixture that includes an isocyanate component having one or more isocyanates and an isocyanate-reactive component having a butylene oxide based polyol, which has a number average molecular weight greater than 2,000 g/mol and less than 8,000 g/mol and a nominal hydroxyl functionality from (2) to (4). At least (50) wt % of a total weight of alkylene oxides used to form the butylene oxide based polyol is butylene oxide. An isocyanate index of the mixture is from (90) to (150). The cured composition in a cured state exhibits a first tan delta peak between a first temperature range of 50 C. to 0 C. and a second tan delta peak between a second temperature range of 75 C. and 150 C., according to a tan delta plot over a range of temperatures, and a value of the first tan delta peak and a value of the second tan delta peak each represents a ratio of a loss modulus of the cured composition and a storage modulus of the cured composition at a specific temperature within the range of temperatures, as measured according to dynamic mechanical thermal analysis. The values of the first and the second tan delta peaks are from (0.10) to (0.90).

US Patent:

20160168416, Jun 16, 2016

Filed:

Sep 4, 2014

Appl. No.:

14/897744

Inventors:

- Midland MI, US
Marcus Pfarherr - Baltringen, DE
Eva-Maria Michalski - Rheinmuenster, DE
Kamesh R. Vyakaranam - Missouri City TX, US
William H. Heath - Lake Jackson TX, US
Kwanho Chang - Lake Jackson TX, US
Rajesh H. Turakhia - Lake Jackson TX, US
Larissa Falsarella - Rosharon TX, US
Adam C. Colson - Lake Jackson TX, US

International Classification:

C09D 163/00
E04C 2/24
E04B 5/02
E04C 2/26

Abstract:

A flooring coating composition includes a coating agent that is a reaction product of an epoxy based formulation, the epoxy based formulation being at least one of an epoxy prepolymer formulation, an epoxy-silane hybrid formulation, and an epoxy thiol acrylate formulation. The coating agent in a cured state exhibits a first tan delta peak between a first temperature range of 75 C to 0 C and a second tan delta peak between a second temperature range of 20 C and 75 C, according to a tan delta plot over a range of temperatures. A value of the first tan delta peak and a value of the second tan delta peak each represents a ratio of a loss modulus of the coating agent and a storage modulus of the coating agent at a specific temperature within the range of temperatures, as measured according to dynamic mechanical thermal analysis. The values of the first and the second tan delta peaks are from 0.10 to 0.80.

US Patent:

20160130466, May 12, 2016

Filed:

Jun 25, 2014

Appl. No.:

14/893657

Inventors:

- Midland MI, US
Marcin Grigoriew - Macclesfield, GB
Harpreet Singh - Pearland TX, US
William H. Heath - Lake Jackson TX, US
Amarnath Singh - Pearland TX, US

International Classification:

C09D 175/04
B05D 3/00

Abstract:

A method for forming a polyurethane coating on an industrial roller includes applying a coating that is a product of a coating forming reaction mixture, which includes a prepolymer component and a curative component, to an industrial roller. The prepolymer component includes a polycarbonate prepolymer, which is a product of a prepolymer forming reaction mixture that includes an isocyanate component and a polycarbonate polyol, and the prepolymer component is present in the coating forming reaction mixture in an amount from 30 wt % to 80 wt %, based on a total weight of the coating forming reaction mixture. The curative component includes a chlorinated aromatic diamine curative agent, and the curative component is present in the coating forming reaction mixture in an amount from 5 wt % to 20 wt %, based on the total weight of the coating forming reaction mixture. Further, the coating is cured to form a polyurethane coating layer on the industrial roller.

US Patent:

20150299510, Oct 22, 2015

Filed:

Dec 18, 2013

Appl. No.:

14/648639

Inventors:

- Midland MI, US
Nathan Wilmot - Missouri City TX, US
Phillip S. Athey - Lake Jackson TX, US
William Heath - Lake Jackson TX, US
Harshad M. Shah - Missouri City TX, US

International Classification:

C09D 171/00
B05D 3/00
C09D 163/00

Abstract:

Joints in an electrical cable are made by joining the ends of the conductors of two cables and applying and then curing a reaction mixture over the joint to form an elastomeric seal. The reaction mixture includes a polyene compound having an average of at least two groups containing aliphatic carbon-carbon double bonds capable of reaction with a thiol group, wherein at least one of such aliphatic carbon-carbon double bonds is separated from each of said aliphatic carbon-carbon double bonds by an aliphatic spacer group having a molecular weight of at least 1000 atomic mass units, an epoxy resin, a curing agent having at least two thiol groups, and a basic catalyst.

US Patent:

20140107288, Apr 17, 2014

Filed:

Mar 27, 2012

Appl. No.:

14/005993

Inventors:

Harpreet Singh - Pearland TX, US
Jorge Jimenez - Lake Jackson TX, US
William H. Heath - Lake Jackson TX, US
Woo-Sung Bae - Midland MI, US
Amarnath Singh - Pearland TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08G 63/64
C09D 169/00
C09J 169/00
C08G 18/44

US Classification:

524590, 525439, 52544015

Abstract:

Embodiments of the invention generally relate to polyols having resistance to hydrocarbons and articles made therefrom. More specifically, embodiments of the invention generally relate to hydrophilic polyester-polycarbonate polyols having resistance to hydrocarbons at high temperatures and articles made therefrom. The novel hydrophilic polyester-polycarbonate polyols described herein may be used in adhesive or elastomer applications requiring enhanced oil and/or diesel resistance. The disclosed polyols are liquid at room temperature, which facilitates processing into polyurethane products As described herein, an elastomer made from such hydrophilic polyester-polycarbonate polyols and methylene diphenyl diisocyanate (MDI) retained >90% of tensile strength after 500 hours ageing at 121 degrees Celsius. A comparative example made from a polyester polyol retained 50% of tensile strength under similar conditions.

US Patent:

20140088245, Mar 27, 2014

Filed:

Mar 30, 2012

Appl. No.:

14/005928

Inventors:

Harpreet Singh - Pearland TX, US
Jorge Jimenez - Lake Jackson TX, US
William H. Heath - Lake Jackson TX, US
Woo-Sung Bae - Midland MI, US
Amarnath Singh - Pearland TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C09D 175/06
C08G 18/34
C08G 64/02

US Classification:

524590, 528302, 528 80

Abstract:

Disclosed are hydrophobic polyester-polycarbonate polyols which are the reaction product of (a) a polyester polyol and (b) one or more polycarbonate polyols. The polyester polyol (a) is the reaction product of: (i) one or more hydrophobic monomers, (ii) one or more organic acids, and (iii) one or more alcohols having an OH functionality of 2 or more. The polyester-polycarbonate polyols may be both amorphous and liquid at room temperature and have excellent hydrolytic stability. The hydrolytic and chemical performance of the polyester-polycarbonate polyols described herein is superior to that of commercially available hydrophobically modified polyester polyols and to that of commercially available polyester-polycarbonate polyols as described herein.