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1. WO2006027164 - POLYMER LATEX SUITABLE FOR THE PREPARATION OF DIP-MOLDED ARTICLES

Publication Number WO/2006/027164
Publication Date 16.03.2006
International Application No. PCT/EP2005/009446
International Filing Date 02.09.2005
Chapter 2 Demand Filed 23.02.2006
IPC
C08F 4/34 2006.01
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
A41D 19/00 2006.01
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
19Gloves
A47L 13/18 2006.01
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 2006.01
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 2006.01
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
B29D 99/00 2010.01
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
CPC
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
C08F 2/22
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
2Processes of polymerisation
12Polymerisation in non-solvents
16Aqueous medium
22Emulsion polymerisation
Applicants
  • POLYMERLATEX GMBH [DE]/[DE] (AllExceptUS)
  • BUTZ, Sören [DE]/[DE] (UsOnly)
  • ERB, Volker [DE]/[DE] (UsOnly)
  • SIEPEN, Katja [DE]/[DE] (UsOnly)
  • VOGT, Hans-Günter [DE]/[DE] (UsOnly)
Inventors
  • BUTZ, Sören
  • ERB, Volker
  • SIEPEN, Katja
  • VOGT, Hans-Günter
Agents
  • STERNAGEL, FLEISCHER; GODEMEYER & PARTNER
Priority Data
04021435.509.09.2004EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
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.
(FR)
L'invention concerne un latex polymère fabriqué par polymérisation par émulsion de radicaux libres, contenant des particules polymères renfermant des unités structurelles dérivées d'au moins un composé diène conjugué, lesdites particules polymères contenant au moins un segment de phase dure présentant une température de transition vitreuse (Tg) d'au moins 50 °C et au moins un segment de phase souple présentant une température de transition vitreuse (Tg) de 10 °C au plus, la quantité totale des segments de phase dure étant de 2 à 40 % en poids et la quantité totale des segments de phase souple étant de 60 à 98 % en poids par rapport au poids total des particules polymères, Tg étant mesurée par calorimétrie à balayage différentiel selon ASTM D3418-03 et le latex polymère présentant une stabilité électrolytique, déterminée en tant que concentration de coagulation critique, inférieure à 30 mmol/l de CaCl2 (déterminée pour une teneur en solide du latex de 0,1 % à un pH de 10), se révélant particulièrement adaptée à la fabrication d'articles moulés au trempé. L'invention concerne également un procédé de fabrication d'un tel latex polymère, l'utilisation dudit latex polymère dans la fabrication d'articles moulés au trempé, une composition de latex polymère composée adaptée à la fabrication d'articles moulés au trempé, un procédé de fabrication d'articles en latex moulés au trempé, et les articles en latex ainsi fabriqués.
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