# US 2008/0306194 A1 · Hot-Melt Adhesive Compositions Based on Olefin Co-Polymers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0306194 A1 - Document ID: US20080306194A1 - Status: Published application - Kind: A1 - Application number: 11/596,328 - Filed: 2005-05-09 - Published: 2008-12-11 - Earliest claimed: 2004-05-11 - Assignees: Huntsman Polymers Corporation - Inventors: Lixin Sun; Enrico L. Buenacosa; Jim Haselman - Web page: https://patentgrep.com/patent/US20080306194A1 ## CPC - C08F 10/06: Propene - C09J 123/10: Homopolymers or copolymers of propene - C08F 210/06: Propene - C08F 210/08: Butenes - C08K 5/005: {Stabilisers against oxidation, heat, light, ozone} - C08K 5/1345: {Carboxylic esters of phenolcarboxylic acids} - C08K 5/524: Esters of phosphorous acids, e.g. of H3PO3 - C08L 51/06: grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond - C08L 2666/24: Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present invention relates to a new type of polyolefin based hot-melt adhesive and methods for their production. More particularly, it relates to a new type of hot-melt adhesive comprising propylene co-polymers and possessing a favorable balance of cohesive strength, adhesion properties, and processibility, which render them especially well-suited for some hot-melt adhesive applications, for example, as elastic attachment adhesives. ## Claims ### Claim 1 1) A composition of matter useful as an adhesive, which comprises: a) about 30% to about 90% by weight, based on the total weight of said composition, of a polypropylene component selected from the group consisting of: polypropylene homopolymers, polypropylene co-polymers, and any mixtures of the foregoing; b) about 10% to about 60% by weight, based on the total weight of said composition, of a tackifier resins component; c) about 0% to about 40% by weight, based on the total weight of said composition, of a functionalized polymer component; and d) about 0.01% to about 1% by weight, based on the total weight of said composition, of a stabilizer(s) component. ### Claim 2 (depends on 1) 2) A composition according to claim 1 wherein the polypropylene component is a co-polymer of propylene and at least one other C2-C10 olefin monomer, wherein the co-monomer content in said propylene co-polymer is any amount between about 0.5% and about 60% by weight, based on the total weight of the co-polymer. ### Claim 3 (depends on 1) 3) A composition according to claim 1 wherein said co-polymer has a degree of crystallinity as measured by method ASTM D-3417 of between about 0.2 and about 35 Joules per gram. ### Claim 4 (depends on 1) 4) A composition according to claim 1 wherein said co-polymer has a weight-average molecular weight of between about 10,000 and about 1,000,000. ### Claim 5 (depends on 1) 5) A composition according to claim 1 wherein said co-polymer has a melt viscosity in the range of between about 500 cps to about 1,000,000 cps @ 375° F. ### Claim 6 (depends on 1) 6) A composition according to claim 1 wherein said tackifier resins component comprises one or more resins derived from a material selected from the group consisting of: hydrocarbons, rosin, rosin esters, synthetic poly-terpenes and natural terpenes. ### Claim 7 (depends on 1) 7) A composition according to claim 1 wherein said tackifier resins component is present in any amount between about 10% to about 60% by weight based on the total weight of said composition. ### Claim 8 (depends on 1) 8) A composition according to claim 1 wherein said functionalized polymer comprises a maleic acid anhydride graft co-polymer of polypropylene. ### Claim 9 (depends on 1) 9) A composition according to claim 1 wherein said functionalized polymer comprises the reaction product of a maleic acid anhydride graft co-polymer of polypropylene with a material having an active hydrogen atom. ### Claim 10 (depends on 9) 10) A composition according to claim 9 wherein said material having an active hydrogen atom is selected from the group consisting of: amines, polyalkylene amines, and polyoxyalkylene amines. ### Claim 11 (depends on 1) 11) A composition according to claim 1 wherein said stabilizer component comprises one or more materials selected from the group consisting of phenols, hindered phenols, and phosphates. ### Claim 12 (depends on 1) 12) A composition according to claim 1 wherein said composition has a melt viscosity of between about 500 cps and about 80,000 cps @ 375° C. ### Claim 13 (depends on 1) 13) A composition according to claim 1 wherein said composition has a melt viscosity of between about 1500 cps and about 10,000 cps @ 375° C. ### Claim 14 (depends on 1) 14) A composition according to claim 1 wherein said composition has a tensile strength of between about 50 and about 400 psi. ### Claim 15 (depends on 1) 15) A composition according to claim 1 wherein said composition has a tensile elongation of at least 50%. ### Claim 16 (depends on 1) 16) A composition according to claim 1 wherein said composition has a tensile elongation of at least 75%. ### Claim 17 (depends on 2) 17) A composition according to claim 2 wherein said other olefin monomer is selected from the group consisting of: 1-butene and 1-octene. ### Claim 18 (depends on 1) 18) A garment which is suitable to be worn by a person which comprises an adhesive according to claim 1. ### Claim 19 (depends on 18) 19) A garment according to claim 18 wherein said garment comprises a strand of elastic material attached to a non-woven polyolefin-containing fabric. ### Claim 20 (depends on 1) 20) A laminated structure which comprises an adhesive according to claim 1.