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US 2015/0020965 A1Published application
Low Temperature Curable Adhesive Compositions
AssigneeSimpson Strong-Tie Company, Inc.
InventorQuentin Lewis Hibben
Life of this patent
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Abstract
The present disclosure is concerned with improved curable adhesive compositions for anchoring elements in a structural body that exhibit low temperature versus standard temperature degree of cures that are at least 50% or higher. The compositions include, in a first portion, a reactive resin, an acetoacetoxy functional monomer and a silane monomer. By using phthalate-free constituents in the formulation, a further 10% increase in strength and durability of the resins at standard temperatures may be realized after curing at low temperatures. Improvements in the adhesive compositions that relate to increased shelf life are also presented.
Claims43
An improved curable adhesive composition, comprising:
- a. at least one reactive resin comprising a polymerizable monomer;
- b. at least one acetoacetoxy functional monomer;
- c. at least one silane monomer;
- d. a free radical initiator;
- and
- e. an accelerant;
- in which the free radical initiator comprises dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and the accelerant is selected from the group consisting of N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and mixtures thereof.
5 more elements
A curable adhesive composition, comprising:
- a. at least one reactive resin comprising a polymerizable monomer;
- b. at least one acetoacetoxy functional monomer;
- c. at least one silane monomer;
- d. a free radical initiator;
- and
- e. an accelerant;
- wherein:
- the polymerizable monomer is an ethoxylated bisphenol A dimethacrylate;
- the acetoacetoxy functional monomer is acetoacetoxyethyl methacrylate;
- the silane monomer is methacryloxypropyl trimethoxysilane;
- the free radical initiator comprises phthalate-free dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and the accelerant is selected from the group consisting of:
- N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and mixtures thereof.
10 more elements
A curable adhesive composition, comprising:
- a. an ethoxylated bisphenol A dimethacrylate;
- b. acetoacetoxyethyl methacrylate;
- c. methacryloxypropyl trimethoxysilane;
- d. phthalate-free dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and
- e. an accelerant selected from the group consisting of N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and mixtures thereof.
3 more elements
A curable adhesive composition, comprising:
- a. an ethoxylated bisphenol A dimethacrylate;
- b. acetoacetoxyethyl methacrylate;
- c. methacryloxypropyl trimethoxysilane;
- d. phthalate-free dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and
- e. N,N-diisopropanol-p-toluidine.
3 more elements
A method for manufacturing an adhesive composition, comprising:
- a. presenting a first portion, the first portion comprising:
- 1) at least one reactive resin comprising a functional monomer;
- 2) at least one acetoacetoxy functional monomer;
- 3) at least one silane monomer;
- and
- 4) at least one accelerant;
- b. presenting a separately arranged second portion, the second portion comprising:
- 5) a free radical initiator;
- and
- c. combining the first portion with the second portion;
- wherein the free radical initiator comprises dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing and the accelerant is selected from the group consisting of N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and mixtures thereof.
8 more elements
A method for anchoring an element in a structural body, comprising:
- a. providing a first portion, the first portion comprising:
- 1) an ethoxylated bisphenol A dimethacrylate;
- 2) acetoacetoxyethyl methacrylate;
- 3) methacryloxypropyl trimethoxysilane;
- and
- 4) an accelerant selected from the group consisting of N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and combinations thereof;
- b. providing a separately arranged second portion, the second portion comprising:
- 5) phthalate-free dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- c. combining the first portion with the second portion forming an adhesive composition;
- and
- d. anchoring the element in the structural body using the adhesive composition.
8 more elements
The method of claim 37, wherein the structural body is selected form the group comprising concrete, masonry and combinations thereof.
A method for anchoring an element in a structural body, comprising:
- a. providing a first portion, the first portion comprising:
- 1) an ethoxylated bisphenol A dimethacrylate;
- 2) acetoacetoxyethyl methacrylate;
- 3) methacryloxypropyl trimethoxysilane;
- and
- 4) phthalate-free dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and
- b. providing a separately arranged second portion, the second portion comprising:
- 5) N,N-diisopropanol-p-toluidine;
- c. combining the first portion with the second portion producing an adhesive composition;
- and
- d. anchoring the element in the structural body using the adhesive composition.
9 more elements
A kit for an adhesive composition, comprising:
- a. a first portion having:
- 1) at least one reactive resin comprising a functional monomer;
- 2) at least one acetoacetoxy functional monomer;
- 3) at least one silane monomer;
- and
- 4) at least one accelerant selected from the group consisting of N,N-diisopropanol-p-toluidine, N,N-dihydroxyethyl-p-toluidine, N,N-methylhydroxyethyl-p-toluidine, and combinations thereof;
- b. a separately-maintained second portion comprising:
- 5) dibenzoyl peroxide and at least one additional component selected from among anti-oxidants, stabilizers, non-reactive diluents, plasticizers, and combinations of any of the foregoing;
- and
- c. instructions for use.
7 more elements
Dependencies are inferred from the claim text.