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1. WO2022094748 - MEDICAL SILICONE PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Publication Number WO/2022/094748
Publication Date 12.05.2022
International Application No. PCT/CN2020/126100
International Filing Date 03.11.2020
IPC
A61L 15/26 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22containing macromolecular materials
26Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
A61L 15/58 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
58Adhesives
CPC
A61L 15/26
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22containing macromolecular materials
26Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
A61L 15/58
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
58Adhesives
Applicants
  • ELKEM SILICONES SHANGHAI CO., LTD. [CN]/[CN]
  • ELKEM SILICONES FRANCE SAS [FR]/[FR]
Inventors
  • YU, Hengda
  • ZHANG, Yin
  • MOINE, Caroline
Agents
  • CCPIT PATENT AND TRADEMARK LAW OFFICE
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MEDICAL SILICONE PRESSURE-SENSITIVE ADHESIVE COMPOSITION
(FR) COMPOSITION ADHÉSIVE À BASE DE SILICONE MÉDICALE RÉAGISSANT À LA PRESSION
Abstract
(EN) The present invention relates to a medical silicone pressure-sensitive adhesive composition comprising: organopolysiloxane A, organopolysiloxane resin B, organopolysiloxane crosslinker XL, organopolysiloxane extender CE, hydrosilylation catalyst D, solvent E and hydrosilylation inhibitor F, wherein the organopolysiloxanes A, CE and XL are chosen such that the molar ratio RHAlk = tH/tAlk is 3.5 to 8; and nH XL/nH CE is within 0.13 to 11, with: -tH = number of moles of hydrogen atom directly bonded to a silicon atom of the organopolysiloxanes XL and CE; -tAlk = number of moles of alkenyl directly bonded to a silicon atom of the organopolysiloxane A; -nH XL = number of moles of hydrogen atom directly bonded to a silicon atom of the organopolysiloxane XL; -nH CE = number of moles of hydrogen atom directly bonded to a silicon atom of the organopolysiloxane CE. The present invention also relates to a method for coating a substrate by using the medical silicone pressure-sensitive adhesive composition, a coated substrate obtainable according to the method, and also to a skin-adhesive article by using the medical silicone pressure-sensitive adhesive composition
(FR) La présente invention concerne une composition adhésive de silicone médicale réagissant à la pression comprenant : un organopolysiloxane A, une résine d'organopolysiloxane B, un agent de réticulation d'organopolysiloxane XL, un extenseur d'organopolysiloxane CE, un catalyseur d'hydrosilylation D, un solvant E et un inhibiteur d'hydrosilylation F, les organopolysiloxanes A, CE et XL étant choisis de telle sorte que le rapport molaire RHAlk = tH/tAlk soit de 3,5 à 8; et nH XL/nH CE est compris entre 0,13 et 11, avec : tH = nombre de moles d'atome d'hydrogène directement lié à un atome de silicium des organopolysiloxanes XL et CE; tAlk = nombre de moles d'alcényle directement lié à un atome de silicium de l'organopolysiloxane A; nH XL = nombre de moles d'atome d'hydrogène directement lié à un atome de silicium de l'organopolysiloxane XL; nH CE = nombre de moles d'atome d'hydrogène directement lié à un atome de silicium de l'organopolysiloxane CE. La présente invention concerne également un procédé de revêtement d'un substrat au moyen de la composition adhésive de silicone médicale réagissant à la pression, un substrat revêtu pouvant être obtenu selon le procédé, et également un article adhésif pour la peau au moyen de la composition adhésive de silicone médicale réagissant à la pression.
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