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1. CA2574819 - POLYMER LATEX SUITABLE FOR THE PREPARATION OF DIP-MOLDED ARTICLES

Office Canada
Application Number 2574819
Application Date 02.09.2005
Publication Number 2574819
Publication Date 16.03.2006
Grant Number
Grant Date 30.07.2013
Publication Kind C
IPC
C08F 4/34
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
28Oxygen or compounds releasing free oxygen
32Organic compounds
34Per-compounds with one peroxy-radical
B29D 99/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
99Subject matter not provided for in other groups of this subclass
A41D 19/00
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
19Gloves
A47L 13/18
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
13Implements for cleaning floors, carpets, furniture, walls, or wall coverings
10Scrubbing; Scouring; Cleaning; Polishing
16Cloths; Pads; Sponges
18Gloves; Glove-like cloths
A61B 19/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
19Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
04Operating gloves; Finger-stalls for operating; Devices for treating them, e.g. cleaning or powdering
B29C 41/14
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
02for making articles of definite length, i.e. discrete articles
14Dipping a core
CPC
C08L 21/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
21Compositions of unspecified rubbers
02Latex
A41D 19/0058
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
19Gloves
0055Plastic or rubber gloves
0058Three-dimensional gloves
A61B 42/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
42Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
B29C 41/003
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
003characterised by the choice of material
B29C 41/14
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
02for making articles of definite length, i.e. discrete articles
14Dipping a core
B29K 2105/0064
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2105Condition, form or state of moulded material ; or of the material to be shaped
0058Liquid or visquous
0064Latex, emulsion or dispersion
Applicants POLYMERLATEX GMBH
Inventors BUTZ, SOEREN
ERB, VOLKER
SIEPEN, KATJA
VOGT, HANS-GUENTER
Priority Data 04021435 09.09.2004 EP
Title
(EN) POLYMER LATEX SUITABLE FOR THE PREPARATION OF DIP-MOLDED ARTICLES
(FR) LATEX POLYMERE ADAPTE A LA FABRICATION D'ARTICLES MOULES AU TREMPE
Abstract
(EN)
The present invention relates to a polymer latex made by free-radical emulsion polymerization comprising polymer particles containing structural units derived from at least one conjugated diene component, whereby said polymer particles comprise at least one hard phase segment having a glass transition temperature (Tg) of at least 50~C and at least one soft phase segment having a glass transition temperature (Tg) of 10~C at most, the total amount of hard phase segments being 2 to 40 wt-% and the total amount of the soft phase segments being 60 to 98 wt-% based on the total weight of the polymer particles, whereby the Tg is measured by DSC according to ASTM D3418-03 and said polymer latex having an electrolyte stability determined as critical coagulation concentration of less than 30 mmol/l CaCl2 (determined for a total solids content of the latex of 0.1% at pH 10) that is particularly suitable for the production of dip-molded articles. Furthermore, the present invention relates to a process for making such a polymer latex, to the use of said polymer latex for the production of dip-molded articles, to a compounded polymer latex composition that is suitable for the production of dip-molded articles, to a method for making dip-molded latex articles, as well as to the latex articles obtained thereby.