US5744543A — One-component reactive adhesive

Claim 1

Independent Claim 47 words

A one-component reactive adhesive based on an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof and radical-polymerizable olefinically unsaturated monomers, wherein the adhesive additionally contains groups selected from the group consisting of isocyanate, silanes and mixtures thereof.

Claim 2

Dependent Claim 47 words

A one-component reactive adhesive based on an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof and radical-polymerizable olefinically unsaturated monomers, wherein the adhesive additionally contains groups selected from the group consisting of isocyanate, silanes and mixtures thereof.

Claim 3

Dependent Claim 55 words

The one-component reactive adhesive composition of claim 1, comprising the product of combining: an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof; a moisture-curing prepolymer adhesive terminated with groups selected from the group consisting of isocyanates, silanes and mixtures thereof; and radical-polymerizable olefinically unsaturated monomers.

Claim 4

Dependent Claim 12 words

The reactive adhesive of claim 1, wherein the hydrazone is acetophenone-t-butyl hydrazone.

Claim 5

Dependent Claim 21 words

The reactive adhesive of claim 1, wherein the dihydropyridine is selected from the group consisting of dihydropyridine, 1-phenyl-2-propyl-3,5-diethyl-1,2-dihydropyridine and mixtures thereof.

Claim 6

Dependent Claim 28 words

The reactive adhesive of claim 2, wherein the moisture-curing prepolymer is selected from the group consisting of isocyanate terminated diols, isocyanate terminated triols, isocyanate acrylates and mixtures thereof.

Claim 7

Dependent Claim 19 words

The reactive adhesive of claim 6, wherein the isocyanate terminated diol prepolymer is an isocyanate terminated polyether diol prepolymer.

Claim 8

Dependent Claim 23 words

The reactive adhesive of claim 6, wherein the isocyanate terminated polyether diol prepolymer is the reaction product of 1,3-bis-(1-isocyanato-1-methylethyl)-benzene and propoxylated bisphenol A.

Claim 9

Dependent Claim 38 words

The reactive adhesive of claim 5, wherein the isocyanate terminated triol is selected from the group consisting of the reaction product of 1,3-bis-(1-isocyanato-1-methylethyl)-benzene and polycaprolactam triol, the reaction product of 1,3-bis-(1-isocyanato-1-methylethyl)-benzene and propylene oxide macrotriol and mixtures thereof.

Claim 10

Dependent Claim 20 words

The reactive adhesive of claim 5, wherein the isocyanate acrylate prepolymer is the reaction product of 1,3-bis4(1-isocyanato-1-methylethyl)7benzene and 2-hydroxyethyl acrylate.

Claim 11

Dependent Claim 32 words

The reactive adhesive of claim 2, wherein the moisture-curing prepolymer is selected from the group consisting of alkoxysilane terminated diols, alkylalkoxysilane terminated diols, alkoxysilane terminated triols, alkylalkoxy terminated triols and mixtures thereof.

Claim 12

Dependent Claim 22 words

The reactive adhesive of claim 10, wherein the alkoxysilane terminated diol is the reaction product of polytetrahydrofurfuryl diol, toluenediisocyanate and 3-aminopropyl trimethoxysilane.

Claim 13

Dependent Claim 36 words

The reactive adhesive of claim 2, wherein the radical-polymerizable olefinically unsaturated monomers are selected from the group consisting of acrylic acid, methacrylic acid, derivatives of acrylic acid, derivatives of methacrylic acid, acryl-terminated polyesters and mixtures thereof.

Claim 14

Dependent Claim 42 words

The reactive adhesive of claim 12, wherein the derivatives of acrylic acid are selected from the group consisting of esters containing from about 1 to about 25 carbon atoms, amides containing from about 1 to about 25 carbon atoms and mixtures thereof.

Claim 15

Dependent Claim 26 words

The reactive adhesive of claim 12, wherein the derivatives of acrylic acid are selected from the group consisting of n-butyl acrylate, phenoxyethyl acrylate and mixtures thereof.

Claim 16

Dependent Claim 42 words

The reactive adhesive of claim 12, wherein the derivatives of methacrylic acid are selected from the group consisting of esters containing from about 1 to about 25 carbon atoms, amides containing from about 1 to about 25 carbon atoms and mixtures thereof.

Claim 17

Dependent Claim 26 words

The reactive adhesive of claim 12, wherein the derivatives of methacrylic acid are selected from the group consisting of methyl methacrylate, hydroxypropyl methacrylate and mixtures thereof.

Claim 18

Dependent Claim 12 words

The reactive adhesive of claim 2, further comprising at least one stabilizer.

Claim 19

Dependent Claim 12 words

The reactive adhesive of claim 2, further comprising at least one filler.

Claim 20

Dependent Claim 12 words

The reactive adhesive of claim 2, further comprising at least one catalyst.

Claim 21

Dependent Claim 24 words

The reactive adhesive of claim 19, wherein the catalyst is selected from the group consisting of tin compounds, ferric acetylacetonate, iodine and mixtures thereof.

Claim 22

Dependent Claim 13 words

The reactive adhesive of claim 19, wherein the catalyst is dibutyl tin dilaurate.

Claim 23

Dependent Claim 73 words

The reactive adhesive of claim 26, which comprises: about 26 parts by weight acryl-terminated polyester; about 26 parts by weight of the reaction product of 1,3-bis-(1-isocyanato-1-methylethyl)-benzene and polycaprolactam triol; about 30 parts by weight n-butyl acrylate; about 17.5 parts by weight of the reaction product of 1 ,3-bis-(1-isocyanato-1-methylethyl)-benzene and 2-hydroxyethyl acrylate; about 4 parts by weight acetophenone-t-butyl hydrazone; about 1.2 parts by weight Fe(acac) 3 ; and about 750 ppm I 2 .

Claim 24

Dependent Claim 71 words

The reactive adhesive of claim 2, which comprises the reaction product of: about 0.2 to about 15% by weight of an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof; about 20 to about 99.6% by weight of radical-polymerizable monomers; and about 0.2 to about 10% by weight of prepolymer termination groups selected from the group consisting of isocyanates, silanes-and mixtures thereof.

Claim 25

Dependent Claim 26 words

The reactive adhesive of claim 23, further comprising about 0.01% to about 50% by weight by weight of additives, based on the adhesive as a whole.

Claim 26

Dependent Claim 17 words

In a process for bonding, wherein the improvement comprises use of the reactive adhesive of claim 2.

Claim 27

Dependent Claim 86 words

A one-component reactive adhesive composition comprising the reaction product of: about 1 to about 10% by weight of an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof; about 40 to about 80% by weight of radical-polymerizable monomers; about 1 to about 7% by weight of prepolymer termination groups selected from the group consisting of isocyanates, silanes and mixtures thereof; and about 0.01 to about 40% by weight of additives, based on the adhesive as a whole.

Claim 28

Dependent Claim 86 words

A one-component reactive adhesive composition comprising the reaction product of: about 1 to about 10% by weight of an air-activatable initiator wherein the air-activatable initiator is selected from the group consisting of hydrazones, dihydropyridines and mixtures thereof; about 40 to about 80% by weight of radical-polymerizable monomers; about 1 to about 7% by weight of prepolymer termination groups selected from the group consisting of isocyanates, silanes and mixtures thereof; and about 0.01 to about 40% by weight of additives, based on the adhesive as a whole.

Claim 29

Dependent Claim 99 words

A process for making one-part moisture and air-cure adhesives, which comprises the steps of: introducing monomer, moisture-curing prepolymer, stabilizer and all additives but for an oxygen-sensitive initiator component, which comprise a mixture, into an inert gas-filled container; homogenizing the mixture; cooling the mixture to below room temperature; evacuating the container; heating the container to room temperature; reiterating the cooling and warming steps to remove degas the mixture; adding a oxygen-sensitive initiator wherein the oxygen-sensitive initiator is selected from the group consisting of hydrazones dihydropyridines and mixtures thereof; and reiterating the cooling, evacuating and warming steps to degas the mixture.

Claim 30

Dependent Claim 99 words

A process for making one-part moisture and air-cure adhesives, which comprises the steps of: introducing monomer, moisture-curing prepolymer, stabilizer and all additives but for an oxygen-sensitive initiator component, which comprise a mixture, into an inert gas-filled container; homogenizing the mixture; cooling the mixture to below room temperature; evacuating the container; heating the container to room temperature; reiterating the cooling and warming steps to remove degas the mixture; adding a oxygen-sensitive initiator wherein the oxygen-sensitive initiator is selected from the group consisting of hydrazones dihydropyridines and mixtures thereof; and reiterating the cooling, evacuating and warming steps to degas the mixture.

Claim 31

Dependent Claim 80 words

The process for making a one-component reactive adhesive product of claim 27, wherein: The mixture comprises about 40 to about 80% by weight of radical-polymerizable monomers, about 1 to about 7% by weight of prepolymer termination groups selected from the group consisting of isocyanates, silanes and mixtures thereof and about 0.01 to about 40% by weight of additives, based on the adhesive as a whole; and the oxygen sensitive initiator is present at about 1 to about 10% by weight.

Claim 32

Dependent Claim 46 words

The process of claim 27, wherein the product comprises: about 50 parts by weight silane-terminated polytetrahydrofurfuryl diol; about 50 parts by weight hydroxypropyl methacrylate; about 4 parts by weight acetophenone-t-butyl hydrazone; about 1.2 parts by weight Fe(acac) 3 ; and about 750 ppm I 2 .

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-04-27	2001-10-27	2002-04-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-04-27	2005-10-27	2006-04-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-04-27	2009-10-27	2010-04-28	$7700.00	Window Closed / Lapsed

One-component reactive adhesive

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