Abstract: In a method for manufacturing a calibrated radiation dosimeter, a layer of radiation sensitive material is applied to a substrate, the radiation sensitive material having an optical density which varies in accordance with a degree of radiation exposure. A pre-exposure optical density of the layer of radiation sensitive material is optically measured and subsequently the layer of radiation sensitive material is exposed to a known dose of radiation. Thereafter, a post-exposure optical density of the layer of radiation sensitive material is optically measured. Using at least the pre-exposure optical density, the post-exposure optical density, and the known dose of radiation, one computes mathematical parameters defining a predetermined mathematical function. The computed mathematical parameters are applied in encoded form to the substrate (e.g., printed in bar code form on the substrate or a holder card).
Type:
Grant
Filed:
January 27, 1998
Date of Patent:
July 31, 2001
Assignee:
ISP Investments Inc.
Inventors:
Henry Seiwatz, Carl A. Listl, J. Michael Donahue, David F. Lewis
Abstract: This invention relates to a single phase emulsifiable concentrate composition comprising (a) between about 0.05 and about 25 wt. % of a biologically, fungicidally and/or herbicidally active aza compound; (b) between about 2 and about 40 wt. % of a lactam selected from the group of N-methyl pyrrolidone, N-methyl caprolactam, a C8 to C18 alkyl pyrrolidone, a C8 to C18 caprolactam and a mixture thereof; (c) between about 2 and about 20 wt. % of a moisture scavenging agent selected from the group consisting of a liquid molecularly hindered carbodiimide, a molecular sieve or a mixture thereof and (d) between about 10 and about 80 wt. % of a mixture of at least two non-ionic surfactants having an overall hydrophilic/lipophilic balance (HLB) above 7. The invention also relates to the stable oil-in-water (o/w) miniemulsions prepared from the above by dilution to between about 40 and about 99.99 wt. % water for a “pour on”, dip or spray solution useful in the treatment of animals or plants.
Type:
Grant
Filed:
October 9, 1998
Date of Patent:
July 3, 2001
Assignee:
ISP Investments Inc.
Inventors:
Domingo I. Jon, Donald I. Prettypaul, Matthew J. Benning, Kolazi S. Narayanan, Robert M. Ianniello
Abstract: A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical initiator, optionally in the presence of a crosslinking agent and/or a surfactant, wherein the oil solvent is present in an amount sufficient to keep the resultant polymer in a stirrable state throughout the polymerization. The polymer reaction product is capable of forming a uniform emulsion or gel upon addition of water thereto.
Type:
Grant
Filed:
December 10, 1997
Date of Patent:
July 3, 2001
Assignee:
ISP Investments Inc.
Inventors:
Krystyna Plochocka, Jui-Chang Chuang, Jenn S. Shih
Abstract: What is described is a high molecular weight homogeneous, branched copolymer of maleic anhydride and a C1-C5 alkyl vinyl ether monomer, in which a branching agent is present in an amount of less than 0.5 wt. % of the polymer. A solution process of making such polymer also is described.
Abstract: A clear, one-phase, efficacious aqueous microemulsion of an agriculturally active pyrethroid insecticide for delivery at a high loading of active is provided herein which is free of nonylphenol ethoxylate.
Type:
Grant
Filed:
April 4, 2000
Date of Patent:
June 26, 2001
Assignee:
ISP Investments Inc.
Inventors:
Kolazi S. Narayanan, Domingo Jon, Robert M. Ianniello, Donald Prettypaul
Abstract: A method of protecting hair or wool against thermal degradation when heat treated at 100-180° C. which comprises applying a composition which includes methyl vinyl ether-maleic acid copolymer as an active constituent to said hair or wool.
Type:
Grant
Filed:
June 22, 1999
Date of Patent:
June 5, 2001
Assignee:
ISP Investments Inc.
Inventors:
Roger L. McMullen, Jr., Janusz Jachowicz
Abstract: A composition for preventing or retarding the formation of gas hydrates during the transport of a fluid comprising water and a hydrocarbon through a conduit. The composition is a homopolymer of vinyl caprolactam, or copolymers thereof, having a low molecular weight in the range of 500 to 4000, which is made by polymerization of the monomer or monomers in a polymerization solvent which is a mixture of a glycol ether and water, preferably 2-butoxyethanol and water, at a pH of about 8-12.
Type:
Grant
Filed:
April 21, 2000
Date of Patent:
June 5, 2001
Assignee:
ISP Investments Inc.
Inventors:
Kirill N. Bakeev, Randall Myers, Jui-Chang Chuang, Thomas Winkler, Allen Krauss
Abstract: This invention relates to a color stable pigment composition for coating hard mineral granules employed for weather surfacing asphalt roofing and siding shingles. The composition is a 40-60% aqueous slurry of pigment containing ferrosoferric oxide and a silicate/clay mixture which is suitable for coating the surface of the mineral granules. The invention also pertains to a process for the manufacture of the coated granules, to the dry coated mineral granule product containing ferrosoferric oxide bonded in a silicate/clay matrix which is suitable for surfacing asphaltic shingles, to the dried composition containing from about 5 to about 50 wt. % total pigment in a silicate/clay matrix in which the pigment contains Fe3O4 in a concentration of between about 2 and about 100% and to a Fe3O4 pigment mixture per se.
Abstract: A process of making a vinyl caprolactam (VCL)-based polymer which comprises suspension polymerizing the monomers in aqueous medium in the absence of an added protective colloid, wherein polymer formed at an early stage of the polymerization functions as a dispersing agent to maintain polymer particles suspended in water throughout the polymerization.
Type:
Grant
Filed:
July 1, 1999
Date of Patent:
May 1, 2001
Assignee:
ISP Investments Inc.
Inventors:
Jui-Chang Chuang, Michael A. Drzewinski
Abstract: What is shown is a high purity adduct of castor oil and a cyclic carboxylic acid anhydride, charactered by the absence of free acid anhydride, which is used in personal care products. The adduct is made by a process, without side reactions, which includes (a) reacting castor oil and cyclic carboxylic acid anhydride at a temperature of 75-120° C. for 4 to 24 hours, and then (b) continuing the reaction at room temperature for at least 1 week to react any remaining maleic anhydride. Skin and hair care formulations of such adducts are also described.
Type:
Grant
Filed:
June 29, 1999
Date of Patent:
May 1, 2001
Assignee:
ISP Investments Inc.
Inventors:
Steven H. Bertz, Frank M. Miksza, Elliott Zucker
Abstract: Algae-resistant roofing granules coated with: a first coat consisting of a fired silicate-clay matrix containing cuprous oxide and zinc sulfide to provide a slow, long-term bimetallic copper and zinc ions release; and a second coat consisting of a fired silicate-clay matrix containing a pigment.
Abstract: Solvent-free, free-flowing, fine white powders of a copolymer of maleic anhydride and a C1-C4 alkyl vinyl ether having a specific viscosity of about 0.5 to about 5 (1% wt/v in methyl ethyl ketone, 25° C.) and substantially without residue, odor or taste. A solvent-free process of polymerizing the monomers in the presence of 0.01 to 1.9% acetaldehyde also is described.
Abstract: Solvent-free, fine white powders of a copolymer of maleic anhydride and a C1-C4 alkyl vinyl ether substantially free of poly(alkyl vinyl ether) homopolymer.
Abstract: What is described herein are conditioning/styling terpolymers of vinylpyrrolidone (VP), dimethylaminopropyl methacrylamide (DMAPMA) and C9-C24 alkyl dimethylaminopropyl methacrylic acid quaternized monomers (QDMAPMA), in a defined compositional range. Hair and skin care compositions which include these terpolymers exhibit advantageous low tackiness and high humidity resistance.
Type:
Grant
Filed:
May 7, 1999
Date of Patent:
March 27, 2001
Assignee:
ISP Investments Inc.
Inventors:
Janusz Jachowicz, Kou-Chang Liu, Roger L. Mc Mullen, Jr., Thomas Winkler
Abstract: This invention relates to the preparation of stable, quaternized vinylpyridine carboxylate homo-, co- and ter-polymers in high yield and purity, which polymers are useful as dye transfer inhibitors and polymers complexable with active agrochemical, pharmaceutical or cosmetic agents for controlled release thereof.
Type:
Grant
Filed:
September 22, 1999
Date of Patent:
March 13, 2001
Assignee:
ISP Investments Inc.
Inventors:
Jenn S. Shih, Eduardo T. Yap, John C. Hornby, Bala Srinivas
Abstract: The invention relates to a fast drying biocidal composition having enhanced penetration for the treatment and preservation of wood, leather and similar natural products which comprises:
A. between about 10 and about 50 wt. % of a concentrate comprising a petroleum distillate boiling above 40° C. and containing
(a) between about 0.5 and about 7 wt. % of an active nitrogen- or sulfur-containing biocide and
(b) between about 20 and about 55 wt. % of a solvent for said active biocide selected from the group consisting of
(i) butyrolactone containing 0 to 85 wt. % N-methyl pyrrolidone and/or 0 to 85 wt. % of a C2 to C4 aliphatic alcohol and
(ii) N-methyl pyrrolidone containing 0 to 85 wt. % of a C2 to C4 alcohol and
B. from about 90 to about 50 wt. % of a C2to C4 aliphatic alcohol containing 0 to 85 wt. % of mineral spirit as a diluent to provide a sprayable composition and to the process for treating a wood or leather substrate with said biocidal composition.
Type:
Grant
Filed:
December 16, 1999
Date of Patent:
March 6, 2001
Assignee:
ISP Investments Inc.
Inventors:
Kolazi S. Narayanan, Domingo I. Jon, Donald Prettypaul
Abstract: What is described is a high molecular weight homogeneous, branched copolymer of maleic anhydride and a C1-C5 alkyl vinyl ether monomer, in which a branching agent is present in an amount of less than 0.5 wt. % of the polymer. A solution process of making such polymer also is described.
Abstract: A homogeneous terpolymer of random monomer distribution containing (a) from abut 32 to about 90% of an N-vinyl lactam, (b) from about 0.5 to about 20% of a mono- or di-functional polysiloxane and (c) from about 5 to about 48% of quaternized or non-quaternized dimethylaminoalkyl-acrylate, methacrylate, acrylamide or methacrylamide combined to form a 100% terpolymer having an excess of vinyl lactam moiety with respect to (c); which terpolymer is useful in a personal care applications, particularly as a hair fixative and conditioner where colorless and clear film forming properties of the terpolymer provides a superior silky, lustrous appearance to the hair without altering hair color or shade, particularly without alteration to dyed or bleached hair.
Abstract: The variegated shingle comprises a shingle layer having front and rear surfaces the front surface including a butt portion and a headlap portion. The shingle layer contains granules on the front surface forming a plurality of horizontal striations providing gradations having color values ranging from light to dark extending between a leading edge of the butt portion and an upper portion thereof. The striations include an upper striation along the upper portion, a lower striation closer to the leading edge, and an intermediate striation between the upper and lower striations. The upper striation is darker in color value than the lower striation, whereas the intermediate striation is no darker in color value than the upper striation and no lighter in color value than the lower striation. The color values of at least one of the upper, lower, and intermediate striations vary across the granule layer.
Type:
Grant
Filed:
December 24, 1997
Date of Patent:
February 20, 2001
Assignee:
Building Materials Corporation of America
Inventors:
Alfredo A. Bondoc, Frederick W. Sieling, William R. Carroll
Abstract: Clear, high load water miscible emulsions of quinoxalinyl ester herbicides, particularly quizalofop-p-ethyl, as a single phase, translocatable composition which is free of xylene and alkylphenol ethoxylate surfactants and concentrate matrix for the active quinoxalinyl ester component at between about 9 and about 25 wt. % active concentration.
Type:
Grant
Filed:
February 16, 2000
Date of Patent:
February 13, 2001
Assignee:
ISP Investments Inc.
Inventors:
Kolazi S. Narayanan, Domingo I. Jon, Donald I. Prettypaul