Steven Phillip Hopper

US Patent:

6350894, Feb 26, 2002

Filed:

Mar 10, 2000

Appl. No.:

09/523336

Inventors:

Craig A. Bonda - Wheaton IL
Steven P. Hopper - Glen Ellyn IL

Assignee:

The C.P. Hall Company - Chicago IL

International Classification:

C07C 6988

US Classification:

560 67

Abstract:

A sunscreen composition containing a UV-B dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4â-methoxydibenzoylmethane (PARSOL 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative selected from formula (I) and formula (II), and mixtures thereof: wherein m=5, 7, 9 or mixtures and n=4, 6, 8 or mixtures; wherein p1 m=5, 7 or mixtures and n=4, 6 or mixtures. These long branched chain alkyl hydroxybenzoates and long branched chain benzoates having a C branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.

US Patent:

57889546, Aug 4, 1998

Filed:

Nov 12, 1997

Appl. No.:

8/967121

Inventors:

Craig A. Bonda - Wheaton IL
Steven P. Hopper - Glen Ellyn IL

Assignee:

The C. P. Hall Company - Chicago IL

International Classification:

A61K 742
A61K 3124
A61K 3112
A61K 700

US Classification:

424 59

Abstract:

A sunscreen composition containing a UV-A dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL. RTM. 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative having formula (I): ##STR1## wherein m=5, 7, 9 or mixtures and n=4, 6, 8 or mixtures; These long branched chain alkyl salicylates having a C. sub. 4. sup. + branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.

US Patent:

47895640, Dec 6, 1988

Filed:

Mar 31, 1987

Appl. No.:

7/032377

Inventors:

Bernard Kanner - West Nyack NY
Roswell E. King - Pleasantville NY
Steven P. Hopper - Glen Ellyn IL

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

B05D 302
C23C 1600

US Classification:

4272556

Abstract:

Surfaces containing hydroxyl groups are rendered water-repellent through exposure to hydridoaminosilanes of the general formula H. sub. x Si(NRH). sub. y (NR. sub. 2. sup. 1). sub. 3-y In particular, tris(dimethylamino)silane and its derivatives have been found to make substrates with hydroxyl-containing surfaces hydrophobic without adversely effecting the physical properties of the substrate being treated and without the necessity of and pre- or post-treatment steps (i. e. moisturizing, neutralizing, etc. ).

US Patent:

46754245, Jun 23, 1987

Filed:

Mar 19, 1986

Appl. No.:

6/841545

Inventors:

Roswell E. King - Pleasantville NY
Bernard Kanner - West Nyack NY
Steven P. Hopper - Carmel NY
Curtis L. Schilling - Croton-on-Hudson NY

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

C07F 710

US Classification:

556412

Abstract:

A method of preparing silazane polymers, with 3 or more repeating units, of the general formula --((CH. sub. 3). sub. 2 N). sub. e Si(R). sub. a (R'HN). sub. f H. sub. c (NR'). sub. g -- and a (CH. sub. 3). sub. 2 NH byproduct group where R is hydrogen, an alkyl group having 1-6 carbon atoms or an aryl group having 6-12 carbon atoms, a=0, or 1, b=2-4, C=0-2, d=0 or 1, e=0-2, f=0-2, g=1-3 and a+c+e+f+g=4 for the polymer units; and R' is hydrogen or methyl, whereby the silazane polymer is substantially free of halide impurities, and wherein this method comprises: transaminating an aminosilane of the general formula (R). sub. a ((CH. sub. 3). sub. 2 N). sub. b H. sub. c S; where R is defined as above and a+b+c=4 with an amine of the general formula (CH. sub. 3). sub. d NH. sub. 3-d whereby d is defined as above and the amine has a molecular weight lower than 45 all in the presence of an acid catalyst or the ammonium salt of the acid and thereafter condensing to form the polymer.

US Patent:

57770140, Jul 7, 1998

Filed:

Dec 3, 1996

Appl. No.:

8/753925

Inventors:

Steven P. Hopper - Glen Ellyn IL
Kimberly L. Stefanisin - Oak Lawn IL
Ronald D. Svoboda - Hickory Hills IL

Assignee:

The C.P. Hall Company - Chicago IL

International Classification:

C08J 510

US Classification:

524308

Abstract:

A plasticized polyvinyl chloride (PVC) resin composition and method of plasticizing and decreasing the hydrophobicity of said PVC resin for adherence of aqueous coating compositions, such as water-based inks, by incorporating into the PVC resin a polymeric plasticizer for PVC, a monomeric diacid plasticizer, comprising primarily a C. sub. 5, C. sub. 4 or C. sub. 3 diacid plasticizer, or mixtures, in a ratio of polymeric/monomeric plasticizers of 5/95 to 95/5, preferably 90/10 to 60/40, and at least about 0. 1%, based on the weight of the PVC resin, of a metal salt additive, wherein the metal salt is an oxide or a hydroxide and has an oxidation state of plus two, three or four, preferably calcium oxide and/or calcium hydroxide. The monomeric/polymeric plasticizer combination together with the metal salt additive(s) unexpectedly decreases the hydrophobicity of the PVC surface for strong adherence of water-based inks and coatings thereto.

US Patent:

57831734, Jul 21, 1998

Filed:

Nov 21, 1996

Appl. No.:

8/752585

Inventors:

Craig A. Bonda - Wheaton IL
Steven P. Hopper - Glen Ellyn IL

Assignee:

The C. P. Hall Company - Chicago IL

International Classification:

A61K 742
A61K 3124
A61K 3112

US Classification:

424 59

Abstract:

A sunscreen composition containing a UV-B dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative selected from formula (I) and formula (II), and mixtures thereof: ##STR1## wherein m=5, 7, 9 or mixtures and n=4, 6, 8 or mixtures; ##STR2## wherein m=5, 7 or mixtures and n=4, 6 or mixtures. These long branched chain alkyl hydroxybenzoates and long branched chain benzoates having a C. sub. 4. sup. + branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.

US Patent:

58492739, Dec 15, 1998

Filed:

Dec 4, 1997

Appl. No.:

8/984765

Inventors:

Criag A. Bonda - Wheaton IL
Steven P. Hopper - Glen Ellyn IL

Assignee:

The C. P. Hall Company - Chicago IL

International Classification:

A61K 742
A61K 3124
A61K 3112
A61K 700

US Classification:

424 59

Abstract:

A sunscreen composition containing a UV-A dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL. RTM. 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative having formula (I): ##STR1## These long branched chain alkyl salicylates having a C. sub. 4 branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.