Exxonmobil Chemical Patents Inc.

The Procter Gamble Company

The Proctor 'gamble Company

Ron Walker

Sudhin Datta

Andy Haishung Tsou

John Robert Hagadorn

Curtis Bobby Motley

Jennifer Mary Marsh

Rhutesh K Shah

Qing Stella

Supriya Punyani

Bernd Andreas Findeis

Ingo Peter Herkert

Crisita Carmen H Atienza

Hamidreza Khakdaman

Jose Antonio Carballada

Krishnan Anantha Narayana Iyer

Lauren Elizabeth Ballhaus

Sebastian Vasquez

Narayanaswami R Dharmarajan

Jian Yang

Antonios K Doufas

Randy Purnell Washington

Yiping Sun

Michael Glenn Davis

Scott H Loyd

Feng Li

Brian J Rohde

Hillary L Passino

Kimari T M Slaughter

Stephanie Lee Davis

Bethany M Welke

Tamara L Blanton

Katherine Mae Beglinger

Described herein is a hair care composition including from about 0.01% to about 20% of a lipid being one or more unsaturated fatty materials chosen from unsaturated fatty acids, unsaturated fatty alcohols, and mixtures thereof. The unsaturated fatty material has a Log P of less than 8. The hair care composition also includes from about 0.01% to about 10% of a fatty acid monoester of a polyol, a saturated fatty alcohol, an ester of a saturated fatty alcohol, and mixtures thereof. The molecule of the fatty acid component of the fatty acid monoester includes a linear or a branched carbon chain with 10 to 22 carbon atoms. The fatty acid monoester of a polyol has a log P of less than 8. The molecule of the fatty alcohol includes a linear or branched carbon chain with 8 to 22 carbon atoms. The hair care composition also includes a non-aqueous volatile solvent.

Composition for enhancing hair fiber properties

A process to produce a branched ethylene-α-olefin diene elastomer comprising combining a catalyst precursor and an activator with a feed comprising ethylene, C3 to C12 α-olefins, and a dual-polymerizable diene to obtain a branched ethylene-α-olefin diene elastomer; where the catalyst precursor is selected from pyridyldiamide and quinolinyldiamido transition metal complexes. The branched ethylene-α-olefin diene elastomer may comprise within a range from 40 to 80 wt % of ethylene-derived units by weight of the branched ethylene-α-olefin diene elastomer, and 0.1 to 2 wt % of singly-polymerizable diene derived units, 0.1 to 2 wt % of singly-polymerizable diene derived units, and the remainder comprising C3 to C12 α-olefin derived units, wherein the branched ethylene-α-olefin diene elastomer has a weight average molecular weight (M) within a range from 100 kg/mole to 300 kg/mole, an average branching index (g′) of 0.9 or more, and a branching index at very high M(g′) of less than 0.9.

Ethylene-a-olefin-diene elastomers and methods of making them

Pellet-stable olefinic copolymer bimodal rubber is made using parallel reactors, with one reactor synthesizing higher molecular weight (MW) rubber with dual catalysts, with an improved molecular weight split ratio and an improved composition distribution of the moderate and ultra-high MW components, while another reactor synthesizes random isotactic polypropylene copolymer (RCP). The effluents are reactor-blended and result in pellet-stable bimodal rubber (P-SBR), which may be pelletized. When making thermoplastic vulcanizates (TPVs) with P-SBR, the need to granulate rubber bales and subsequently use talc, clay, or other anti-agglomeration agents to prevent granulated rubber crumbs from agglomerating are eliminated. TPVs made with P-SBR have vulcanized rubber particles that are smaller and more uniform in size, resulting in TPVs with higher particle counts and more thermoplastic 'ligaments' between the particles, with such ligaments being made stronger by the added RCP. Such thus-produced TPVs have a lower hysteresis and flexural modulus, and better elastic properties.

Preparation of bimodal rubber, thermoplastic vulcanizates, and articles made therefrom

This invention relates to a thermoplastic vulcanizate having excellent elongation comprising an isotactic polypropylene matrix phase in which a cross-linked ethylene-propylene-diene terpolymer (EPDM) is dispersed, the vulcanizate comprising the reaction product of:

Compatibilized thermoplastic vulcanizate compositions

Disclosed is the preparation of compatibilized thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. A cross-linkable ethylene-propylene-diene terpolymer with majority propylene (PEDM) is used to compatibilize a plastic and rubber blend of a polypropylene (PP) and an ethylene-propylene-diene terpolymer rubber, where the propylene content is less than 50 wt % (EPDM), in dynamic vulcanization and preparation of PP/EPDM thermoplastic vulcanizates. The resulting PP/EPDM thermoplastic vulcanizates typically exhibit a weight average equivalent dispersion diameter of less than 3 microns and a particle size polydispersity index (PSDI), or weight average over number average dispersion diameter, of less than 5. This reduction in crosslinked rubber dispersion size in a PP/EPDM TPV by using PEDM compatibilizers enhances the toughness of the vulcanizate product by raising both elongation to break and break stress.

In some embodiments, the present disclosure provides a composition comprising from 5 phr to 30 phr of a PEDM terpolymer having 1 to 10 wt % diene, 13 to 40 wt % ethylene, and 15 to 85 wt % propylene, based on the weight of the PEDM terpolymer. The composition further comprises from 70 phr to 95 phr of an ethylene-based copolymer comprising an ethylene content different than the first polymer, a Cto C&#x3b1;-olefin, and, optionally, one or more dienes.

Elastomeric propylene-ethylene-diene terpolymer compositions

A process to produce a branched ethylene-&#x3b1;-olefin diene elastomer comprising combining a catalyst precursor and an activator with a feed comprising ethylene, C3 to C12 &#x3b1;-olefins, and a dual-polymerizable diene to obtain a branched ethylene-&#x3b1;-olefin diene elastomer; where the catalyst precursor is selected from pyridyldiamide and quinolinyldiamido transition metal complexes. The branched ethylene-&#x3b1;-olefin diene elastomer may comprise within a range from 40 to 80 wt % of ethylene-derived units by weight of the branched ethylene-&#x3b1;-olefin diene elastomer, and 0.1 to 2 wt % of singly-polymerizable diene derived units, 0.1 to 2 wt % of singly-polymerizable diene derived units, and the remainder comprising C3 to C12 &#x3b1;-olefin derived units, wherein the branched ethylene-&#x3b1;-olefin diene elastomer has a weight average molecular weight (M) within a range from 100 kg/mole to 300 kg/mole, an average branching index (g') of 0.9 or more, and a branching index at very high M(g&#x2032;) of less than 0.9.

Disclosed is the preparation of thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. The thermoplastic vulcanizates include a polypropylene matrix phase in which cross-linked rubber particles are dispersed. The thermoplastic vulcanizates include the reaction product of a mixture that includes at least 10 wt % of isotactic polypropylene at least 30 wt % of an amorphous propylene-ethylene-diene terpolymer containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units; at least 10 wt % of a diluent and at least 0.015 wt % of at least one curative. The mixture is preferably formed without adding an ethylene-propylene-diene terpolymer.

Thermoplastic vulcanizates and compositions therefrom

Use of twin screw extrusion to further enhance the uniformity of crosslinked rubber dispersion in thermoplastic vulcanizates (TPVs) to improve elastic properties of TPVs is disclosed. Most specifically, this invention employs intermeshing twin screw extruders to further homogenize dynamically vulcanized rubber dispersions in TPVs so that their particle size dispersion index (PSDI), or the ratio of weight average equivalent dispersion particle diameter to number average equivalent dispersion particle diameter, can be lowered to less than 1.6 or 1.57 with corresponding elastic property improvements by having lower hysteresis, higher elongation to break, and higher retractive force. TPV products having lower PSDI and improved elastic properties, and apparatus for conducting the disclosed method, are also provided.

Crosslinked rubber dispersion in thermoplastic vulcanizates

A thermoplastic vulcanizate comprises an isotactic polypropylene matrix phase in which cross-linked rubber particles are dispersed, the rubber particles comprising an ethylene-propylene-diene terpolymer (EPDM) containing at least 40 wt % of ethylene-derived units. A propylene-ethylene-diene terpolymer (PEDM) containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units and having a heat of fusion (H) of 2 to 10 J/g is added to compatibilize the propylene/EPDM blend.

Thermoplastic vulcanizate compositions

A hair conditioning composition comprising from about 0.1% to about 20% of a lipid being one or more unsaturated fatty material selected from a group consisting of an unsaturated fatty acid; an unsaturated fatty alcohol; an unsaturated amine; an unsaturated amide; and an unsaturated phospholipid; wherein the molecule of said unsaturated fatty material comprises a linear or branched carbon chain with 8 to 24 carbon atoms, and one carbon-carbon double bond in a position of the said carbon chain between position C3 and position omega for the unsaturated fatty acid or unsaturated amide and between position C2 and position omega for the unsaturated fatty alcohol, unsaturated amine or unsaturated phospholipid and wherein the LogP of said unsaturated fatty material is less than 7; and 0.1% to 20% of one or more lipid enhancing agent selected from the group comprising of a fatty acid monoester of a polyol wherein the molecule of the fatty acid component of such monoester contains a linear or branched carbon chain with 10 to 22 carbon atoms and wherein the fatty acid monoester of a polyol has a logP of less than 7; a saturated fatty alcohol wherein the molecule of the fatty alcohol contains a linear or branched carbon chain with 8 to 22 carbon atoms; an ester of a saturated fatty alcohol wherein the molecule of said ester contains 10 to 44 total carbon atoms; an alcohol wherein the molecule of such alcohol contains an aromatic ring.

A method to measure heat damage of keratin fibers comprising eluting a peptide from a hair sample with an aqueous solution; extracting the peptide using a suitable solvent sample; analyzing the peptide samples with MALDI-MS; resulting in peptide results; identifying presence of a marker peptide and identifying the m/z ratio for the peptide.

Growing community of inventors

Pearland, TX, United States of America

Ron Walker