Global Patent Index - EP 2841045 A4

EP 2841045 A4 20160113 - HYDROPHILIC PRESSURE SENSITIVE BIOADHESIVES WITH TARGETED ADHESION TOWARDS TEETH AND TOOTH CARE COMPOSITIONS BASED THEREON

Title (en)

HYDROPHILIC PRESSURE SENSITIVE BIOADHESIVES WITH TARGETED ADHESION TOWARDS TEETH AND TOOTH CARE COMPOSITIONS BASED THEREON

Title (de)

HYDROPHILE DRUCKEMPFINDLICHE BIOHAFTSTOFFE MIT GEZIELTER HAFTUNG AN DEN ZÄHNEN UND ZAHNPFLEGEMITTEL DAMIT

Title (fr)

BIOADHÉSIFS SENSIBLES À LA PRESSION, HYDROPHILES, AYANT UNE ADHÉRENCE CIBLÉE VIS-À-VIS DES DENTS ET COMPOSITIONS POUR SOINS DENTAIRES À BASE DE CEUX-CI

Publication

EP 2841045 A4 20160113 (EN)

Application

EP 12875126 A 20120514

Priority

  • RU 2012116982 A 20120427
  • RU 2012000377 W 20120514

Abstract (en)

[origin: WO2013162404A1] Present invention relates to adhesive hydrogel compositions, namely to "smart" water-absorbing pressure-sensitive bioadhesive films, which possess strong targeted adhesion towards teeth but do not adhere to other mucosal tissues in oral cavity. The compositions comprise a film-forming, hydrophilic polymer and other hydrophilic polymeric, oligomeric or low-molecular weight components, providing a complex formation with particular values of glass transition temperature, elasticity modulus G\ loss tangent, swelling degree and swell ratio. The film-forming, hydrophilic polymer is present in a higher concentration than others composition components, and the latter contain complementary reactive functional groups which are capable of forming noncovalent hydrogen, electrostatic or ionic bonds with the functional groups of the hydrophilic film-forming polymer. In swollen state the "smart" hydrophilic pressure- sensitive bioadhesive is softer than the dental substrate but harder than the mucosal tissues in oral cavity. The compositions find utility as tooth whitening strips or gels, and with this purpose contain a whitening agent, preferably peroxide.

IPC 8 full level

A61K 6/00 (2006.01); A61K 8/02 (2006.01); A61K 8/22 (2006.01); A61K 8/37 (2006.01); A61K 8/38 (2006.01); A61K 8/42 (2006.01); A61K 8/72 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61K 8/86 (2006.01); A61Q 11/00 (2006.01); A61Q 11/02 (2006.01)

CPC (source: EP)

A61K 6/30 (2020.01); A61K 8/0208 (2013.01); A61K 8/22 (2013.01); A61K 8/37 (2013.01); A61K 8/42 (2013.01); A61K 8/731 (2013.01); A61K 8/8129 (2013.01); A61K 8/8147 (2013.01); A61K 8/8152 (2013.01); A61K 8/8182 (2013.01); A61K 8/86 (2013.01); A61Q 11/00 (2013.01)

C-Set (source: EP)

A61K 6/30 + C08L 33/06

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2013162404 A1 20131031; EP 2841045 A1 20150304; EP 2841045 A4 20160113; RU 2012116982 A 20131110; RU 2517142 C2 20140527

DOCDB simple family (application)

RU 2012000377 W 20120514; EP 12875126 A 20120514; RU 2012116982 A 20120427