Kiarash Alavi Shooshtari

7608670, Oct 27, 2009

Nov 20, 2006

11/602579

Kiarash Alavi Shooshtari - Littleton CO, US

Johns Manville - Denver CO

C08F 20/00
B05D 3/02

5253295, 525 69, 525165, 525172, 525383, 525384, 525419, 525386, 525437, 4273722, 4273898

An improved curable formaldehyde-free binding composition is provided. Such curable composition comprises the reaction product of a polyanhydride and a polyol crosslinker and a lower molecular weight anhydride. Initially, the polyanhydride is modified through reaction with a polyol (e. g. , a glycol or an alkanolamine) and subsequently is grafted with the lower molecular weight anhydride (e. g. , maleic anhydride) to form a water-soluble or water-dispersible curable reaction product. The composition is well suited for binding fibrous materials (e. g. , a mat of glass fibers) or for bonding together non-fibrous materials. The binder composition displays an advantageous viscosity so as to facilitate a flowable application with ease combined with an adequately high molecular weight to satisfactorily undergo service as a binder following curing even when harsh environmental conditions (e. g. , hot humid air) are encountered for a prolonged period of time.

7812097, Oct 12, 2010

Sep 22, 2009

12/586435

Kiarash Alavi Shooshtari - Littleton CO, US

Johns Manville - Denver CO

C08F 20/66

5253295, 525 64, 525 69, 525165, 525172, 525383, 525384, 525419, 525386, 525437, 525177, 4273722, 4273898, 427384, 4273855, 4273897, 428375, 428364, 428426, 156627, 156332, 523222

An improved curable formaldehyde-free binding composition is provided. Such curable composition comprises the reaction product of a polyanhydride and a polyol crosslinker and a lower molecular weight anhydride. Initially, the polyanhydride is modified through reaction with a polyol (e. g. , a glycol or an alkanolamine) and subsequently is grafted with the lower molecular weight anhydride (e. g. , maleic anhydride) to form a water-soluble or water-dispersible curable reaction product. The composition is well suited for binding fibrous materials (e. g. , a mat of glass fibers) or for bonding together non-fibrous materials. The binder composition displays an advantageous viscosity so as to facilitate a flowable application with ease combined with an adequately high molecular weight to satisfactorily undergo service as a binder following curing even when harsh environmental conditions (e. g. , hot humid air) are encountered for a prolonged period of time.

7825214, Nov 2, 2010

Jan 15, 2008

12/008908

Kiarash Alavi Shooshtari - Littleton CO, US
Jawed Asrar - Greenwood Village CO, US

Johns Manville - Denver CO

C08G 73/10
C08F 20/04

528497, 252 884, 4273855, 4273898, 5263183

An aqueous binding composition is provided comprised of a polyanhydride based polymer, which polyanhydride based polymer has been purified through the use of an azeotrope. The resulting binder is effective, particularly for binding glass fibers, yet substantially odor free. A fibrous material is provided that is coated with a water-resistant cured binder formed in accordance with the process of the present invention wherein adjoining fibers are bound at cross-over points. Such bound fibrous material is free of a phenol-formaldehyde resin and substantially free of odor. It has been found that by removing purities such as cumene and acetophenone from a polyanhydride binder, e. g. , a styrene maleic anhydride based polymer based binder, an effective binder for glass fiber is obtained while also avoiding an odor problem.

7838448, Nov 23, 2010

Nov 29, 2007

11/998348

Kiarash Alavi Shooshtari - Littleton CO, US
Diana Kim Fisler - Littleton CO, US

Johns Manville - Denver CO

B32B 17/02

442180, 524461, 524556

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises a substantially unpolymerized acrylate and/or methacrylate primarily having no more than approximately six recurring moieties. The composition is either unpolymerized at the time of its application to the fiberglass or in the form of an oligomer. The curable composition is coated on fiberglass and thereafter is cured to form a secure binder. In a preferred embodiment the fiberglass is the form of building insulation. In other embodiments the product is a microglass-based substrate useful for as a printed circuit board, battery separator, filter stock, or reinforcement scrim.

8148277, Apr 3, 2012

Jan 15, 2008

12/008907

Kiarash Alavi Shooshtari - Littleton CO, US
Jawed Asrar - Greenwood Village CO, US

Johns Manville - Denver CO

B32B 17/02
D02G 3/00

442180, 428375, 4273855, 4273897

A process for securely binding the adjoining fibers of a fibrous material in the absence of the use of a phenol-formaldehyde reaction product is provided. A curable binding composition comprising a water-soluble intermediate reaction product having hydroxyl and carboxylic acid end groups that is capable of undergoing an esterification crosslinking reaction is provided. The intermediate reaction product is formed by the reaction of (i) a polyanhydride, and (ii) certain polyol crosslinkers other than an alkanolamine. Such crosslinkers have been found to yield a bound product that displays improved color (i. e. , lighter color). Particularly preferred crosslinkers are triethylene glycol and tripropylene glycol. When applied to a fibrous material, the intermediate reaction product is reacted with crosslinking to form a cured reaction product. In a preferred embodiment the securely bound fibrous product is building insulation of good color that well resists water.

8193106, Jun 5, 2012

Jan 15, 2008

12/008909

Kiarash Alavi Shooshtari - Littleton CO, US
Jawed Asrar - Greenwood Village CO, US

Johns Manville - Denver CO

B32B 17/02
D02G 3/00

442180, 428375, 4273855, 4273897

A process for securely binding the adjoining fibers of a fibrous material in the absence of the use of phenol-formaldehyde reaction product is provided. A curable binding composition comprising an intermediate reaction product capable of undergoing free-radical polymerization as well as an esterification crosslinking reaction is provided. The intermediate reaction product is formed by the reaction of (i) at least one anhydride having at least one unsaturated double bond capable of undergoing free-radical polymerization, and (ii) at least one polyol crosslinker. When applied to a fibrous material, the binding composition comprising the intermediate reaction product is cured in the presence of a free-radical initiator and a polyol crosslinker wherein the double bonds present in the intermediate reaction product undergo free-radical polymerization and hydroxyl and carboxylic acid end groups undergo crosslinking to form a cured binder. In a preferred embodiment the securely bound fibrous product is fiberglass building insulation that well withstands water even at elevated temperatures.

8211974, Jul 3, 2012

Oct 7, 2005

11/245668

Kiarash Alavi Shooshtari - Littleton CO, US
Jawed Asrar - Greenwood Village CO, US

Johns Manville - Denver CO

C03C 25/26

524593, 525 57, 525 61

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an acid-catalyzed reaction product of an aldehyde or ketone with a multihydric alcohol. When heated, the composition forms polyacetal or polyketal that undergoes curing to form a water-insoluble resin binder which exhibits good adhesion to glass. In a preferred embodiment, maleic anhydride initially serves as a catalyst and subsequently enters into a cross-linking reaction during curing to form a poly(ester-acetal). Also, in a preferred embodiment, the fiberglass is in the form of building insulation. In other embodiments the product can be a microglass-based substrate for use in a printed circuit board, battery separator, filter stock, or reinforcement scrim.

8357746, Jan 22, 2013

May 3, 2007

11/799903

Kiarash Alavi Shooshtari - Littleton CO, US

Johns Manville - Denver CO

C08K 3/40

524492, 524548, 524549, 524599, 524608, 524847, 526271, 526347, 528271, 528310, 528422

Improved binder technology for use with fibrous materials is provided whereby the adjoining fibers of a fibrous material are bound in the absence of a phenol-formaldehyde reaction product. A curable binder composition is provided which comprises a water-soluble Michael adduct crosslinking agent having reactive hydroxyl end groups and a polycarboxylic acid capable of undergoing an esterification reaction. The binding composition is coated on a fibrous material and is heated to achieve crosslinking of hydroxyl end groups of the Michael adduct and carboxylic acid groups of the polycarboxylic acid via an esterification reaction to form a cured water-resistant binder in association with the fibrous material wherein adjoining fibers are bound at cross-over points.