Abstract: The subject invention involves processes for making granular compositions comprising soil release polymers, the polymers comprising at least about 10% of substantially linear esters having a backbone; the esters being uncapped or end-capped on one or both ends of the backbone; the esters comprising in their backbones oxyalkyleneoxy units and hydrophobic aryldicarbonyl units; the esters having a molecular weight of from about 500 to about 20,000; the polymers if in solid state having the tendency when exposed to moisture to spontaneously rearrange from an amorphous form which is readily soluble in water to a crystalline form which is relatively insoluble in water; the process comprising the following steps:a) taking the soil release polymers, in which are dispersed from 0% to about 25% alkylaryl or alkyl sulfonate crystallization-reducing stabilizers, in molten state at a temperature of at least about 180.degree. C.
Type:
Grant
Filed:
August 8, 1996
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Benjamin Edgar Chapman, Michael Timothy Creedon
Abstract: A package for containing hygienic articles. The package has a dispensing aperture covered by a refastenably closable flap. The flap overlaps the dispensing aperture, to minimize external contamination. The aperture is made by a cut-out, leaving an opening in the material used to form the package. A separate retaining band is added to decrease the size of the opening so that the desired overlap can be maintained independent of the cut-out used to form the opening or the flap. The package is intact as presented to the user, and may completely enclose the hygienic articles after the first use of a hygienic article.
Type:
Grant
Filed:
August 9, 1996
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Gary Curtis Joseph, Charles John Berg, Jr., Ricky Alan Pollard
Abstract: Absorbent article such as disposable diapers, incontinent briefs, diaper holders, and the like, that have a unique composite member forming a portion of the elasticized side panel and the elasticized waistband. The composite member includes an elastomeric member and a three-dimensional, macroscopically expanded, formed-film member secured to at least one of the surfaces of the elastomeric member. The composite member provides the preferred bulk, elasticity, resiliency, and stiffness required to withstand the application, wear and removal stresses and provide the desired comfort during the typical wearing cycle of a disposable diaper.
Type:
Grant
Filed:
November 20, 1996
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
John Joseph Curro, Scot G. Wolf, Willie King
Abstract: The present invention relates to emulsion compositions which are useful for imparting both an artificial tan to human skin and for providing protection to the skin from the harmful effects of UV radiation. These compositions have good stability at acidic pH values, are highly substantive to the skin, and provide a natural looking tan.
Type:
Grant
Filed:
December 21, 1995
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
George Endel Deckner, Francisco Antonio Pichardo, Noelle Carolyn Alban, Marsha Carolyn Sills
Abstract: A process for incorporating a fine particulate filler such as kaolin clay into tissue paper is disclosed. The process results in strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels.
Type:
Grant
Filed:
April 3, 1996
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Kenneth Douglas Vinson, Howard Thomas Deason
Abstract: A TiO.sub.2 hydrogel and method of preparation therefor is disclosed: TiO.sub.2 particles ranging in size from at least about 50 nm to about 150 nm wherein the particle is about 20% to about 90% anatase are disclosed. Topical sunscreen compositions, which comprise 1% to about 15% anatase/amorphous TiO.sub.2 are also disclosed. This composition provides UVA and UVB protection without concomitant dulling or discoloring the skin. The composition also has enhanced stability, is invisible, is easy to apply in an even manner and resists discoloration (or "color-changing") or decomposition on the shelf or on the skin.
Type:
Grant
Filed:
May 24, 1995
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Jiang Yue, Lisa Renee Dew, Donald Lynn Bissett
Abstract: An inverting bag co-dispenser for dispensing a plurality of fluids simultaneously but separately through, a spout and, with a predetermined discharge volume ratio for each fluid. An upper portion defining a housing has a spout connected thereto. The housing has an outer wall and a plurality of side-by-side annular members supported internally to the outer wall. A plurality of fluid containing flexible bags are connected to and supported in the upper portion, one each of the bags being located inside one each of the side-by-side annular members and in fluid communication with the spout. The bags have closed bottoms, perimeters slidably fitting inside the annular members, and a bag wall thickness. A bottom portion has a base and an outer wall extending upwardly therefrom. The bottom portion also has a plurality of upright posts connected to the base and located inside the outer wall.
Abstract: Disclosed is a detergent composition comprising a polyhydroxy fatty acid amide surfactant of the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.4 hydrocarbyl, 2-hydroxy ethyl, 2 hyroxy propyl, or a mixture thereof, R.sup.2 is C.sub.5 -C.sub.31 hydrocarbyl, and Z is a polyhydroxy-hydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls connected directly to said chain, or an alkoxylated derivative thereof, and a non-borate, non-borate-forming bleaching agent such as the persulfates and especially the percarbonate bleaches. Mixtures of non-perborates with bleach activators such as tetraacetyl ethylene diamine are also used in the compositions. Also disclosed is a method for cleaning substrates, such as fabrics, fibers, textiles, hard surfaces, etc., at temperatures below about 50.degree. C., especially below about 40.degree. C.
Type:
Grant
Filed:
March 7, 1995
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Frederick Edward Hardy, Bruce Prentiss Murch
Abstract: A process for making granular detergent compositions or components comprising from about 35% to about 85% by weight of a surfactant system comprising a mixture of polyhydroxy fatty acid amide and ethoxylated nonionic surfactant. The surfactant system is in the solid phase at temperatures of 25.degree. C. and below, and has a softening point from above 25.degree. C. to 100.degree. C. Additionally, the surfactant system has a viscosity profile whereby its viscosity is at least about 20,000 cps at a temperature of 10.degree. C. above the softening point, and less than about 10,000 cps at a temperature of 30.degree. C. above the softening point, all viscosities being measured at a shear rate of 25 s.sup.-1.
Type:
Grant
Filed:
March 12, 1996
Date of Patent:
December 16, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Carole Patricia Wilkinson, Paul Amaat Raymond France, John Christian Schmitt
Abstract: Modified cellulosic fibers are formed by (1) esterifying cellulosic fibers with a 1,2-disubstituted alkene that has at least one carboxylic acid group reactive with cellulosic hydroxyl groups and (2) oxidizing the esterified fibers to form aldehyde groups. The modified fibers are useful in paper products, which tend to have temporary wet strength. Strength additives may be included in the paper product to impart a higher level of temporary wet strength or permanent wet strength.
Abstract: The present invention provides a microwave silicate foam susceptor which comprises a dry sodium silicate foam substrate coated with an effective amount of microwave active material. The silicate is preferably a sodium silicate, but can be other suitable alkali metal silicate, and the active constituent is preferably graphite, but other actives can be used. The susceptor of the present invention is capable of quickly reaching and more importantly maintaining extremely high temperatures. This enables it to brown and crispen foods in a microwave oven.
Type:
Grant
Filed:
December 29, 1995
Date of Patent:
December 16, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Robert Lawrence Prosise, Paul Ralph Bunke, Phillip Floyd Pflaumer, Joseph Anthony Milenkevich
Abstract: Light duty liquid or gel dishwashing detergent compositions which exhibit good grease emulsification performance comprise detergent surfactants and high amounts of long chain amine oxide. A preferred embodiment additionally contains suds boosters and divalent ions.
Abstract: Disclosed is a fiber comprising, chemically bonded together, (a) a conventional cellulosic fiber, such as a Kraft fiber or a chemithermomechanical pulp fiber; (b) poly(acrylate-co-itaconate) copolymer, such as the acid form of a poly(acrylate-co-itaconate) copolymer comprising 90-95 mole % acrylate and 5-10 mole % itaconate having weight average molecular weight of about 600,000-900,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especially evaporatively depositing an intimate mixture of the copolymer and polyol on the fiber followed by thermally crosslinking at specific temperatures for limited periods; absorbent paper which can be made by wet-laying the fiber, especially in admixture with conventional fiber; and derivative paper structures, such as multi-ply disposable absorbent towels.
Type:
Grant
Filed:
May 1, 1995
Date of Patent:
December 16, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Robert Lee Barcus, David William Bjorkquist
Abstract: Fibrous cellulose materials useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a vegetable oil based quaternary ammonium chemical softening compound. Examples of preferred vegetable oil based quaternary ammonium chemical softening compounds include diester di(oleyl)dimethyl ammonium chloride (DEDODMAC) (i.e., di(octadec-z-9-eneoyloxyethyl)dimethyl ammonium chloride) derived from canola oil and/or high oleic safflower oil. Variables that need to be adjusted to maximize the fluidity of vegetable oil based acyl groups include the cis/trans isomer ratio or the Iodine Value (IV) of the fatty acyl groups. The tissue softness is further enhanced by controlling the purity of the fatty acyl groups and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds.
Abstract: Process for using detergent compositions comprising a surfactant system that is either (1) a mixture of nonionic and zwitterionic detergent surfactants; (2) a mixture of nonionic and amphoteric (non-zwitterionic) detergent surfactants, preferably; or (3) short chain nonionic detergent surfactant, the nonionic detergent surfactants preferably being short chain and/or having peaked distribution; optional hydrophobic cleaning solvent; and polycarboxylate, especially dicarboxylate, detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5, preferably from about 2 to about 4 when the dicarboxylate builder is used. The compositions are in the form of aqueous liquids. Short chain peaked distribution nonionic detergent suffactants provide surprisingly superior sudsing characteristics.
Type:
Grant
Filed:
June 6, 1995
Date of Patent:
December 16, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Ricky Ah-Man Woo, Michel Jean Carrie, William Ajalon Cilley, Ronald Anthony Masters, Daniel Wayne Michael, Eddy Vos
Abstract: There is provided a bleaching composition, suitable for use in a machine dishwashing method, containing: an oxygen-releasing bleaching agent, from 0.05% to 2.5% by weight, preferably 0.1% to 0.6% by weight of a paraffin oil, from 0.005% to 3%, preferably 0.02% to 1% and most preferably from 0.05% to 0.5% of a benzotriazole compound. Preferably the bleaching composition forms a part of a detergent composition.
Type:
Grant
Filed:
December 21, 1995
Date of Patent:
December 16, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Julie Ann Christie, Fiona Susan Macbeath, John Christopher Turner
Abstract: Described herein is a multiple layer absorbent core having a front ear section, a crotch section and a back ear section, wherein the machine direction length of the crotch section equals the combined machine direction length of the front ear section and the back ear section, the angle and radii forming the transition from the crotch width to the ear width being equal, the core being suitable for use in an absorbent article, and a method for manufacturing such multiple layer absorbent core.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
December 9, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Stephen Joseph Lange, Douglas Herrin Benson, John Walter Hackett, Gary Dean Lavon, Bret Darren Seitz
Abstract: The present invention pertains to a compound sanitary napkin. The compound sanitary napkin comprises a primary absorbent member including an absorbent core and an outer cover. The primary absorbent member has a second portion and an first portion; the first portion being vertically opposed to the second portion. The width of the first portion is greater than the width of the second portion. The compound sanitary napkin further comprises a secondary absorbent member that is joined with the primary absorbent member juxtaposed the second portion. The secondary absorbent member preferably comprises a liquid impervious backsheet and an absorbent material joined thereto. Optionally, the secondary absorbent member includes a backsheet, a topsheet joined to the backsheet and an absorbent core disposed between the backsheet and the top sheet.