Sheila Patel Dubs from 2109 Carriage Ln, Conroe, TX 77384, age 47, Phone: 9362733268

Polyurethane Foam
view source
US Patent:

8372893, Feb 12, 2013
Filed:

Sep 23, 2011
Appl. No.:

13/243826
Inventors:

Hanna Lekovic - Troy MI, US
Frank Hoefflin - Royal Oak MI, US
Michael Anderson - Oxford MI, US
Trent Shidaker - The Woodlands TX, US
Michael Connolly - Ypsilanti MI, US
Sheila Dubs - Conroe TX, US
Jinhuang Wu - Troy MI, US
Assignee:

Sika Technology AG - Baar
International Classification:

C08G 18/28
US Classification:

521174, 521130, 521163, 521164, 521167, 521170, 521175, 521176, 4284231, 4284258
Abstract:

This disclosure describes a method of making a polyurethane foam and a method of reducing NVH expected to be experienced by a substrate using the foam. When the foam is subjected to 95% relative humidity for a period of 7 days at a temperature of about 50 C. , the foam absorbs an amount of water that is less than about 30% of the weight of the foam.

Polyurethane Foam
view source
US Patent:

20090124718, May 14, 2009
Filed:

Nov 5, 2008
Appl. No.:

12/265487
Inventors:

Hanna Lekovic - Troy MI, US
Frank Hoefflin - Royal Oak MI, US
Michael Anderson - Oxford MI, US
Trent Shidaker - The Woodlands TX, US
Michael Connolly - Ypsilanti MI, US
Sheila Dubs - Conroe TX, US
Jinhuang Wu - Troy MI, US
International Classification:

C08L 75/04
US Classification:

521137
Abstract:

A polyurethane foam is disclosed and described. The polyurethane foam is formed by combining a first component comprising at least one polyol with a second component comprising at least one polyisocyanate. The ratio of the number of isocyanate equivalents in the second component to the number of hydroxyl equivalents in the second component is less than 1.0. The foam exhibits low levels of free diisocyanate monomer, thereby reducing the amount of hazardous, volatile organic compounds. As a result, the foam can be prepared and installed without the need for ventilation equipment, external sources of fresh air, and the like.

Hydrocarbon Blown Polyurethane Foam Formulation Giving Desirable Thermal Insulation Properties
view source
US Patent:

20190375878, Dec 12, 2019
Filed:

Aug 21, 2019
Appl. No.:

16/546364
Inventors:

- The Woodlands TX, US
Kristof Dedecker - Leefdaal, BE
Sheila Dubs - Conroe TX, US
Paul Coleman - The Woodlands TX, US
International Classification:

C08G 18/08
C08G 18/06
Abstract:

Polyurethane/polyisocyanurate foam insulation described herein is derived from a composition that contains an organic polyisocyanate, an isocyanate reactive material containing at least about 20% by weight, based on the total weight of the composition, of an aromatic polyester polyol, a hydrocarbon blowing agent, a first catalyst selected from the group consisting of a carboxylate salt of an alkali metal, a carboxylate salt of an alkaline earth metal, a carboxylate salt of a quaternary ammonium, and combinations thereof, and a second catalyst comprising a non-reactive tertiary amine, wherein a molar ratio of the first catalyst to the second catalyst is less than about 1.25, the composition gels quickly, and the composition has an isocyanate index greater than about 175. Such an insulating foam has a ratio of thermal conductivity at 75 F. to thermal conductivity at 25 F. between about 0.98 and about 1.10.