Donald L Rymer from 2433 School House Rd, Little Hocking, OH 45742, age 81, Phone: 7409892815

Low-Color Stiff Pvb Laminates
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US Patent:

7642307, Jan 5, 2010
Filed:

Jan 30, 2006
Appl. No.:

11/343591
Inventors:

Bert C. Wong - Hockessin DE, US
Donald L. Rymer - Little Hocking OH, US
Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C08F 236/12
C08K 5/00
C08L 29/04
B01J 13/00
C08F 2/24
B32B 27/32
B32B 27/42
US Classification:

524297, 524308, 524503, 524557, 524747, 428220, 428437
Abstract:

The present invention describes laminate articles comprising a stiff, low-color PVB sheet having a YID of less than 12 and having a low concentration of plasticizer in the PVB composition, wherein the sheet is prepared from a composition that includes a PVB bleaching compound. A sheet of the present invention is useful for making glass laminates useful for parts in making cars, boats, trains, buildings, display cases, and other articles that utilize transparent glass laminates.

Low-Color Pvb Sheet And A Process For Making Same
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US Patent:

7687560, Mar 30, 2010
Filed:

Mar 11, 2003
Appl. No.:

10/501598
Inventors:

Donald L. Rymer - Little Hocking OH, US
Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C08F 236/12
C08K 5/00
C08L 29/04
B01J 13/00
C08F 2/24
B32B 27/32
B32B 27/42
US Classification:

524297, 524308, 524503, 524557, 524747, 428220, 428437
Abstract:

The present invention is a low-color plasticized PVB sheet and a process for preparing the same. The sheet of the present invention yields a YID measurement of less than 12. A sheet of the present invention is useful for making glass laminates that are useful in cars, boats, trains, buildings, and display cases, for example.

Process For Controlling Polyvinylbutyral Physical Properties By Controlling Stereochemistry Of Same
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US Patent:

7709565, May 4, 2010
Filed:

Aug 4, 2003
Appl. No.:

10/519661
Inventors:

Donald L Rymer - Little Hocking OH, US
Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C08F 8/28
C08J 3/00
US Classification:

524297, 524284, 524296, 524557
Abstract:

The present invention is method for controlling the stereoisomerism of PVB resin as well as a PVB resin having a meso/racemic stereoisomer ratio of from about 2. 5 to about 5. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of PVB, in addition to or in lieu of changing additives or manipulating the PVB composition.

Glass Laminates Comprising Acoustic Interlayers And Solar Control Films
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US Patent:

7968186, Jun 28, 2011
Filed:

Jul 3, 2007
Appl. No.:

11/825041
Inventors:

Donald L. Rymer - Little Hocking OH, US
Richard A. Hayes - Beaumont TX, US
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

B32B 17/10
US Classification:

428339, 428332, 428436, 428437, 428441, 428442
Abstract:

An acoustic solar control laminate comprising a multi-layer interlayer formed of a solar control film bonded between two polymeric sheets with at least one being an acoustic poly(vinyl acetal) sheet is provided.

Polyvinylbutyral Resin Composition Having Specified Physical Properties And Stereochemistry
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US Patent:

8053504, Nov 8, 2011
Filed:

Mar 18, 2010
Appl. No.:

12/726439
Inventors:

Donald L. Rymer - Little Hocking OH, US
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C08F 8/28
C08J 3/00
US Classification:

524297, 524557, 524284, 524296
Abstract:

A polyvinyl butyral (PVB) resin has a meso/racemic stereoisomer ratio of from about to about. A process for preparing this PVB resin is described. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of a plasticized composition comprising the PVB resin, in addition to or in lieu of changing additives or otherwise manipulating the components of the plasticized PVB resin composition.

Plasticized Composition Comprising Polyvinylbutyral Resin Having Controlled Stereochemistry
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US Patent:

8329793, Dec 11, 2012
Filed:

Sep 23, 2011
Appl. No.:

13/242502
Inventors:

Donald L. Rymer - Little Hocking OH, US
Assignee:

E I du Pont de Nemours and Company - Wilmington DE
International Classification:

C08K 5/41
C08F 8/28
C08J 3/00
C08L 61/00
US Classification:

524156, 524297, 524284, 524296, 524557, 524166, 524308, 524314
Abstract:

Provided herein is a polyvinylbutyral (PVB) resin having a meso/racemic stereoisomer ratio of from about 2. 5 to about 5. Further provided herein is a plasticized PVB composition comprising the PVB resin. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of the PVB composition, in addition to or in lieu of changing additives or otherwise manipulating the PVB composition.

Low-Color Stiff Pvb Laminates
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US Patent:

20050131133, Jun 16, 2005
Filed:

Mar 11, 2003
Appl. No.:

10/501491
Inventors:

Bert Wong - Hockessin, DE
Donald Rymer - Little Hocking OH, US
Nolan Read III - Vienna WV, US
International Classification:

C08J003/00
US Classification:

524557000
Abstract:

The present invention describes laminate articles comprising a stiff, low-color PVB sheet having a YID of less than 12 and having a low concentration of plasticizer in the PVB composition, wherein the sheet is prepared from a composition that includes a PVB bleaching compound. A sheet of the present invention is useful for making glass laminates useful for parts in making cars, boats, trains, buildings, display cases, and other articles that utilize transparent glass laminates.

Low-Color Stiff Pvb Laminates For Use In Aircraft Windscreens
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US Patent:

20050192398, Sep 1, 2005
Filed:

Mar 11, 2003
Appl. No.:

10/501493
Inventors:

Bert Wong - Hockessin DE, US
Donald Rymer - Little Hocking OH, US
Nolan Read III - Vienna WV, US
International Classification:

C08J003/00
US Classification:

524557000
Abstract:

The present invention describes laminate articles comprising a stiff, low-color PVB resin having a YID of less than 12 and having a low concentration of plasticizer in the resin composition, wherein the resin is prepared from a composition that includes a PVB bleaching compound. The laminate articles of the present invention have high curvature. A laminate of the present invention can be particularly useful for aircraft windscreen applications.

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Location:

Little Hocking, OH

Work:

Dupont
Consultant

Donald L Rymer