# US 2019/0313779 A1 · Oral Care Implement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0313779 A1 - Document ID: US20190313779A1 - Status: Published application - Kind: A1 - Application number: 15/953,595 - Filed: 2018-04-16 - Published: 2019-10-17 - Earliest claimed: 2018-04-16 - Assignees: Colgate-Palmolive Company - Applicants: Colgate-Palmolive Company - Inventors: Douglas Hohlbein; Chi Shing WONG - Web page: https://patentgrep.com/patent/US20190313779A1 ## CPC - A46B 5/026: {Grips or handles having a nonslip section} - A46D 3/005: {by moulding or casting a body around bristles or tufts of bristles} - A46B 5/00: Brush bodies; Handles integral with brushware - A46B 5/002: {having articulations, joints or flexible portions} - A46B 5/02: specially shaped for holding by the hand - A46B 5/021: {Grips or handles specially adapted to conform to the hand} - A46B 9/04: {Arranged like in or} for toothbrushes - A46D 3/00: Preparing, {i.e. Manufacturing} brush bodies - A46B 2200/1066: Toothbrush for cleaning the teeth or dentures (A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04) - B29C 45/1676: {using a soft material and a rigid material, e.g. making articles with a sealing part} - A46B: BRUSHES (handles not integral with brushware B25G) - A46D: MANUFACTURE OF BRUSHES - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract Described herein is an oral care implement comprising a body having a head portion, a gripping portion, and a neck portion located between the head and gripping portions, a plurality of tooth engaging elements extending from the head portion, the body comprising a first component formed of a first hard plastic having a first ductility; and a second component formed of a second hard plastic having a second ductility that is greater than the first ductility. ## Claims ### Claim 1 An oral care implement comprising: a body having a head portion, a gripping portion, and a neck portion located between the head and gripping portions; a plurality of tooth engaging elements extending from the head portion; the body comprising: a first component formed of a first hard plastic having a first ductility; and a second component formed of a second hard plastic having a second ductility that is greater than the first ductility. ### Claim at position 2 -4. (canceled) ### Claim 5 (depends on 1) The oral care implement according to claim 1, wherein the first hard plastic is polypropylene and the second hard plastic is an impact modified polypropylene. ### Claim at position 4 -8. (canceled) ### Claim 9 (depends on 1) The oral care implement according to claim 1, wherein the first hard plastic has a first ductility and the second hard plastic has a second ductility, the ratio of the second ductility to the first ductility ranging from about 1.5:1.0 to about 4.0:1.0. ### Claim at position 6 -18. (canceled) ### Claim 19 (depends on 1) The oral care implement according to claim 1, wherein the second component forms a portion of an exposed surface of the body. ### Claim 20 (depends on 19) The oral care implement according to claim 19 wherein the second component forms a portion of an exposed front surface of the body and a portion of an exposed rear surface of the body. ### Claim 21 (depends on 20) The oral care implement according to claim 20 wherein the neck portion of the body comprises the portion of the exposed front surface of the body formed by the second component and the portion of the exposed rear surface of the body formed by the second component. ### Claim 22 (depends on 20) The oral care implement according to claim 20 wherein the gripping portion of the body comprises the portion of the exposed front surface of the body formed by the second component and the portion of the exposed rear surface of the body formed by the second component ### Claim 23 (depends on 19) The oral care implement according to claim 19 the head portion of the exposed rear surface of the body formed by the second component. ### Claim 24 (depends on 1) The oral care implement according to claim 1 wherein first component forms a portion of an exposed first side surface of the body and a portion of an exposed second side surface of the body. ### Claim 25 (depends on 24) The oral care implement according to claim 24 wherein the first component forms an exposed proximal end surface of the body that extends between the exposed first and second side surfaces of the body. ### Claim at position 14 -30. (canceled) ### Claim 31 An oral care implement comprising: a body having a head portion, a gripping portion, and a neck portion located between the head and gripping portions; a plurality of tooth engaging elements extending from the head portion; the body comprising: a first component formed of a polypropylene homopolymer; and a second component formed of an impact-modified polypropylene. ### Claim 32 (depends on 31) The oral care implement according to claim 31, wherein the impact modified polypropylene is a polypropylene copolymer comprising co-mer units of ethylene. ### Claim 33 (depends on 32) The oral care implement according to claim 32, wherein the co-mer units of ethylene are present in an amount ranging from about 1 wt. % to about 5 wt. % based on the total weight of the impact modified polypropylene. ### Claim at position 18 -36. (canceled) ### Claim 37 (depends on 31) The oral care implement according to claim 31, wherein the impact modified polypropylene is a blend of polypropylene homopolymer and impact modifier polymer. ### Claim 38 (depends on 37) The oral care implement according to claim 37, wherein the impact modifier polymer is present in an amount ranging from about 2 wt. % to about 10 wt. % based on the total weight of the polypropylene homopolymer and the impact modifier polymer. ### Claim 39 (depends on 37) The oral care implement according to claim 37, wherein the impact modifier polymer comprises metallocene polyolefin. ### Claim 40 (depends on 39) The oral care implement according to claim 39, wherein the metallocene polyolefin is polyethylene. ### Claim at position 23 -45. (canceled) ### Claim 46 An oral care implement comprising: a body having a head portion, a gripping portion, and a neck portion located between the head and gripping portions; a plurality of tooth engaging elements extending from the head portion; the body comprising: a first component formed of a first material having a first hardness and a first ductility; and a second component formed of a second material having a second hardness and a second ductility; wherein the ratio of the first hardness to the second hardness is about 1.1:1 to about 1:1.1 and the ratio of the second ductility to the first ductility ranges from about 1.5:1.0 to about 4.0:1.0. ### Claim 47 (depends on 46) The oral care implement according to claim 46, wherein the first hardness is substantially equal to the second hardness. ### Claim 48 (depends on 46) The oral care implement according to claim 46, wherein the ratio of the second ductility to the first ductility ranges from about 2.0:1.0 to about 3.5:1.0. ### Claim at position 27 -53. (canceled)