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1. (WO2019043625) COLD-DRAWN POLYOLEFIN COPOLYMER CORD FOR EARPLUG
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Pub. No.: WO/2019/043625 International Application No.: PCT/IB2018/056646
Publication Date: 07.03.2019 International Filing Date: 30.08.2018
IPC:
H01B 7/04 (2006.01) ,H04R 1/10 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
7
Insulated conductors or cables characterised by their form
04
Flexible cables, conductors, or cords, e.g. trailing cables
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
10
Earpieces; Attachments therefor
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors:
BROWN, James D.; US
CAI, Feng; US
COFFIN, Robert C.; US
Agent:
EHRICH, Dena M.,; US
RHODES, Kevin H.; US
BLANK, Colene H.,; US
HARTS, Dean M. ,; US
LEVINSON, Eric D.,; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RINGSRED, Ted K.,; US
Priority Data:
62/553,63901.09.2017US
Title (EN) COLD-DRAWN POLYOLEFIN COPOLYMER CORD FOR EARPLUG
(FR) CORDON DE COPOLYMÈRE DE POLYOLÉFINE ÉTIRÉ À FROID POUR BOUCHON D'OREILLE
Abstract:
(EN) An earplug assembly and method of forming the same is described. The method includes uniaxially stretching a cord formed of copolymer including ethylene segments and vinyl acetate segments to form a cold-drawn cord. The cold drawn cord has an elongation to break of 250% or less. The method then includes fixing the cold drawn cord to an earplug.
(FR) Cette invention concerne un ensemble bouchon d'oreille et son procédé de formation. Le procédé comprend l'étirage uni-axial d'un cordon formé d'un copolymère comprenant des segments d'éthylène et des segments d'acétate de vinyle pour former un cordon étiré à froid. Le cordon étiré à froid présente un allongement à la rupture inférieur ou égal à 250 %. Le procédé comprend en outre la fixation du cordon étiré à froid à un bouchon d'oreille.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)