John H Tsai

US Patent:

6843888, Jan 18, 2005

Filed:

Mar 13, 2001

Appl. No.:

09/804791

Inventors:

Michele M. Merrette - Bridgewater NJ, US
John J. Tsai - Belle Mead NJ, US
Paul H. Richardson - Plainsboro NJ, US

Assignee:

National Starch and Chemical Investment Holding Corporation - New Castle DE

International Classification:

D21H 1724

US Classification:

162175, 1062061, 536102, 536106

Abstract:

This invention relates to a degraded, inhibited cationic starch for use in papermaking systems, which affords improved physical properties, particularly strength. Additionally these derivatives provide easy-to-prepare alternatives totraditional starches, and can even be added directly to the papermaking process without cooking. While the benefits of these starch compositions can be applied to any type of papermaking method, they are especially useful in high shear, high conductivity and recycle systems.

US Patent:

20030099691, May 29, 2003

Filed:

Nov 16, 2001

Appl. No.:

09/991385

Inventors:

Susan Lydzinski - Belle Mead NJ, US
Todd Manegold - Somerset NJ, US
Daniel Solarek - Hillsborough NJ, US
John Tsai - Belle Mead NJ, US
Christine Puglisi - Mountainside NJ, US

International Classification:

A61K009/70
A61K007/16
A61K031/718

US Classification:

424/443000, 514/060000

Abstract:

The present invention relates to a film, particularly an oral film, which contains starch as the main component. Such film is useful for delivering a variety of agents to humans and other animals to produce a therapeutic, organoleptic, or cosmetic effect, including breath fresheners, flavors, fragrances and pharmaceuticals.

US Patent:

20030099692, May 29, 2003

Filed:

Mar 19, 2002

Appl. No.:

10/100260

Inventors:

Susan Lydzinski - Belle Mead NJ, US
Todd Manegold - Somerset NJ, US
Daniel Solarek - Hillsborough NJ, US
John Tsai - Belle Mead NJ, US
Christine Puglisi - Mountainside NJ, US

International Classification:

A61K007/16
A61K009/70
A61K031/718

US Classification:

424/443000, 514/060000

Abstract:

The present invention relates to a film, particularly an oral film, which contains starch as the main component. Such film is useful for delivering a variety of agents to humans and other animals to produce a therapeutic, organoleptic, pharmacological, agricultural or cosmetic effect, including breath fresheners, flavors, fragrances and pharmaceuticals.

US Patent:

51322854, Jul 21, 1992

Filed:

Dec 19, 1989

Appl. No.:

7/455854

Inventors:

John J. Tsai - Belle Mead NJ

Assignee:

National Starch and Chemical Investment Holding Corporation - Wilmington DE

International Classification:

D21H 1745
D21H 1724
C09K 702

US Classification:

507121

Abstract:

A method of thickening, stabilizing, controlling mobility, or enhancing water retention in aqueous media and electrolyte-containing aqueous media employs neutrally-charged polyamphoteric graft copolymers of polysaccharides with zwitterionic monomers or cationic/anionic monomer pairs. These polyampholytes are characterized by their unique resistance to loss of intrinsic viscosity in the presence of electrolytes. These polyampholytes may be prepared by an inverse emulsion method of graft copolymerization. One such electrolyte-tolerant polyampholyte is a novel composition prepared by graft copolymerization of guar gum.

US Patent:

61938432, Feb 27, 2001

Filed:

Jun 1, 1994

Appl. No.:

8/252501

Inventors:

John (Ji-Hsiung) Tsai - Belle Mead NJ
Peter T. Trzasko - Plainsboro NJ
Michael T. Philbin - Plainsboro NJ
Robert L. Billmers - Stockton NJ
Martin M. Tessler - Edison NJ
Joseph A. Van Gompel - Lodi WI
Morton W. Rutenberg - No. Plainfield NJ

Assignee:

National Starch and Chemical Investment Holding Corporation - Wilmington DE

International Classification:

D21H 1724

US Classification:

162175

Abstract:

Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl, alkaryl, cycloaliphatic, or heterocyclic amines, some of which are novel compositions. The polycationic polysaccharide derivatives prepared from these reagents are useful in the manufacture of paper.

US Patent:

49837486, Jan 8, 1991

Filed:

Dec 28, 1988

Appl. No.:

7/290934

Inventors:

John J. Tsai - Belle Mead NJ
Patrick G. Jobe - Westfield NJ
Diane J. Lamb - Lincoln NE
Martin M. Tessler - Edison NJ

Assignee:

National Starch and Chemical Investment Holding Corporation - Wilmington DE

International Classification:

C07D30308
C07D30312

US Classification:

549551

Abstract:

Polysaccharide aldehydes having the formula Sacch--O--CH. sub. 2 --CH. dbd. CH--CHO, Saach--O--CH. sub. 2 --C. tbd. C--CHO, ##STR1## starch, cellulose, and gum aldehydes, are useful for imparting wet, dry, or temporary wet strength to paper. They are prepared by a non-oxidative method which involves reacting the polysaccharide base, in the presence of alkali, with a derivatizing acetal reagent having the general structure ##STR2## and then hydrolyzing the acetal by adjusting the pH to less than 7, preferably 2-4. In the formulas, n is 1-3; R. sup. 11 and R. sup. 12 are independently an alkyl, aryl, aralkyl, or alkaryl group when n is 1, R. sup. 11 or R. sup. 12 is one of the groups when n is 2, or R. sup. 11 and R. sup. 12 are not present when n is 3; R. sup. 13 is an alkyl group, optionally containing an ether linkage, or an aralkyl group; R. sup. 14 and R. sup.

US Patent:

57565562, May 26, 1998

Filed:

Nov 18, 1996

Appl. No.:

8/746958

Inventors:

John Tsai - Belle Mead NJ
Christopher L. Kulp - Palmer PA
Walter Maliczyszyn - Somerville NJ
Paul A. Altieri - Belle Mead NJ
David C. Rawlins - Piscataway NJ

Assignee:

National Starch and Chemical Investment Holding Corporation - Wilmington DE

International Classification:

C08L 500
C08J 900

US Classification:

521 841

Abstract:

An expanded shaped product with improved flexural compressibility and surface properties comprising starch and a hydrophobically modified acid anhydride or its acid hydrolyzed counterpart and the method of preparing such product by extrusion.

US Patent:

48661511, Sep 12, 1989

Filed:

Oct 26, 1987

Appl. No.:

7/112644

Inventors:

John J. Tsai - Belle Mead NJ
Patrick G. Jobe - Westfield NJ
Robert L. Billmers - Stockton NJ

Assignee:

National Starch and Chemical Corporation - Bridgewater NJ

International Classification:

C08B 3108
C08B 3714
D21H 320

US Classification:

527300

Abstract:

Polysaccharide graft polymers which comprise an acetal-containing or aldehyde-containing homopolymer or copolymer grafted to a polysaccharide base have been prepared. The monomer repeating units in the homopolymer are derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group; The monomer repeating units in the copolymer are derived from the above monomer and derived from one or more ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer. A and A' are independently a lower alkyl or A and A' together form at least a 5-membered cyclic acetal; with the proviso that the graft polymer contain no ##STR1## groups when the aldehyde groups are present. The aldehyde-containing graft polymers are useful for imparting wet strength to paper. Various novel acetal- and aldehyde-containing monomers have also been prepared; they can be graft polymerized to polysaccharide substrates or polymerized by conventional emulsion polymerization techniques with vinyl polymerizable monomers.