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1. WO2018007451 - HOT-MELT ADHESIVES PROCESSABLE WITH HIGH SPEED PROCESSES

Publication Number WO/2018/007451
Publication Date 11.01.2018
International Application No. PCT/EP2017/066789
International Filing Date 05.07.2017
IPC
C08L 23/20 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
20having four to nine carbon atoms
C08F 2/00 2006.1
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
C09J 123/20 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
123Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
02not modified by chemical after-treatment
18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
20having four to nine carbon atoms
CPC
C08L 2205/025
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
02containing two or more polymers of the same C08L -group
025containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
C08L 23/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
12Polypropene
C08L 23/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
10Homopolymers or copolymers of propene
14Copolymers of propene
C08L 23/20
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
20having four to nine carbon atoms
C08L 2314/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2314Polymer mixtures characterised by way of preparation
06Metallocene or single site catalysts
C09J 11/08
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
11Features of adhesives not provided for in group C09J9/00, e.g. additives
08Macromolecular additives
Applicants
  • SAVARE' I.C. S.R.L. [IT]/[IT]
Inventors
  • CORZANI, Italo
  • SAVARE', Biagio
Agents
  • VATTI, Francesco, Paolo
  • FAGGIONI, Giovanmaria
  • FAGGIONI, Marco
  • FAGGIONI, Carlo, Maria
Priority Data
10201700003059420.03.2017IT
16178432.707.07.2016EP
16178433.507.07.2016EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HOT-MELT ADHESIVES PROCESSABLE WITH HIGH SPEED PROCESSES
(FR) ADHÉSIFS THERMOFUSIBLES POUVANT ÊTRE TRAITÉS À L'AIDE DE PROCÉDÉS À GRANDE VITESSE
Abstract
(EN)
The present invention discloses new hot-melt adhesive formulations having improved processability and that are easily processable even with processes at high speed and in particular with Spraying or Fiberization processes. Said hot-melt adhesive formulations comprise, as their main polymer component, at least one isotactic metallocene butene-1 polymer composition, that has a low viscosity, and that has a substantially bimodal composition, directly obtained during polymerization, in two consecutive and separate reaction steps, where the first polymer (polymer A) of said compositionally bimodal polymer composition is an isotactic butene-1 homopolymer or an isotactic butene-1 copolymer with another olefin, while the second polymer (polymer B) is an isotactic copolymer of butene-1, with another olefin, with a chemical composition obviously different from A, qualitatively and / or quantitatively; said hot-melts further comprising a viscosity modifier that is not solid at room temperature. The hot-melt adhesive formulations according to the present invention are particularly suitable for being used in manufacturing absorbent hygienic articles, in various types of applications inside said articles.
(FR)
La présente invention concerne de nouvelles formulations d'adhésif thermofusible présentant une aptitude au traitement améliorée et qui peuvent être facilement traités, même à l'aide de procédés à grande vitesse et, en particulier, à l'aide de procédés de pulvérisation ou de défibrage. Lesdites formulations d'adhésif thermofusible comprennent, à titre de composant polymère principal, au moins une composition polymère de butène-1 isotactique catalysée par un métallocène, de faible viscosité, et qui a une composition sensiblement bimodale, directement obtenue pendant la polymérisation, lors de deux étapes de réaction consécutives et distinctes, où le premier polymère (polymère A) de ladite composition polymère de composition bimodale est un homopolymère de butène-1 isotactique ou un copolymère de butène-1 isotactique avec une autre oléfine, et le second polymère (polymère B) est un copolymère isotactique de butène-1, avec une autre oléfine, de composition chimique nettement différente de A, en termes qualitatif et/ou quantitatif ; lesdites masses fondues comprenant en outre un modificateur de viscosité qui n'est pas solide à température ambiante. Les formulations d'adhésif thermofusible selon la présente invention se prêtent particulièrement bien à une utilisation dans la fabrication d'articles hygiéniques absorbants, et divers types d'applications dans lesdits articles.
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