What is claimed is:
1. An bonded article comprising a peroxide-cured elastomer bonded to a substrate, and as a single organic bonding layer between said elastomer and substrate, said adhesive layer is the residue of an aqueous adhesive comprising a bonding agent comprising a phenol-aldehyde resole, an etherified bis-phenol adduct dispersed with an aqueous protective colloid, and wherein said adhesive exhibits rubber tearing bonds between the vulcanizate of said peroxide-cured elastomer and substrate with said adhesive therebetween.
2. The article of claim 1 wherein said bonding agent comprises 90 to 55% of said phenol-aldehyde resole and from 10 to 55% of said etherified bis-phenol adduct on weight basis of said bonding agent.
3. The article of claim 1 further comprising a metallic acid scavenger and a film former.
4. The article of claim 3 wherein said metallic acid scavenger is selected from the group consisting of oxides or salts of iron, nickel, cobalt, copper, zinc, calcium and aluminum, phosphates of zinc, oxides of cadmium, oxides of magnesium, oxides of lead, and oxides of zirconium, and mixtures thereof.
5. The article of claim 3 wherein the halogenated polyolefin is selected from the group consisting of chlorinated natural rubber, polychloroprene, chlorinated polychloroprene, chlorinated polybutadiene, polyhexachloxopentadiene butadienehalogenated cyclic conjugated diene adducts, chlorinated butadiene styrene copolymers, chlorinated ethylene propylene copolymers and ethylenepropylenenon-conjugated diene terpolymers, chlorinated polyethylene, chlorosulfonated polyethylene, brominated poly(2,3-dichloro-1,3-butadiene), copolymers of .alpha.-haloacrylo-nitriles and 2,3-dichloro-1,3-butadiene, and chlorinated poly(vinyl chloride).
6. The article of claim 3 wherein said film former is a chlorosulfonated polyethylene and said acid scavenger comprises a metal other than lead.
7. The article of claim 1 further comprising a film former selected from the group consisting of chlorinated natural rubber, polychloroprene, chlorinated polychloroprene, chlorinated polybutadiene, a chlorinated butadiene styrene copolymer, chlorinated ethylene propylene copolymer, a chlorinated ethylenepropylenenon-conjugated diene terpolymer, chlorinated polyethylene, chlorosulfonated polyethylene, and a copolymer of -chloroacrylonitrile and 2,3-dichloro-1,3-butadiene, and mixtures thereof.
8. The article of claim 6 wherein the acid scavenger comprises a metal salt or oxide selected from the group consisting of the oxides and phosphates of zinc, oxides and phosphates of cadmium, oxides of magnesium, oxides and phosphates of aluminum, oxides of zirconium, zirconium salts, and combinations thereof.
9. The article of claim 3 wherein the acid scavenger comprises a lead-containing compound selected from the group consisting of dibasic lead phthalate, monohydrous tribasic lead maleate, tetrabasic lead fumarate, dibasic lead phosphite, basic lead carbonate, lead oxide, lead dioxide and combinations thereof.
10. The article of claim 7 wherein said adhesive further comprises a supplemental polymeric film-forming other than said film former, in an amount ranging from about 5 to 40 wt. %.
11. An aqueous one-coat adhesive exhibiting rubber tearing bonds to peroxide cured elastomer bonded to a substrate, on a weight basis consisting essentially of: 1-3% of an aqueous dispersant, from 2-6% of a precipitated silica, from 10-30% of an acid scavenger, from 0-20% of titanium dioxide, 10-30% of a halogenated film forming polymer, and 50-80% of a bonding agent which comprises a 45 to 90 wt. % of phenolic resole and from 10 to 55% of an etherified bisphenol adduct dispersed in an aqueous protective colloid, and water to 100%.
12. An article comprising a peroxide-cured elastomer bonded to a substrate, and as a single adhesive layer between said elastomer and substrate, said adhesive layer consisting of an aqueous PVOH dispersed mixture of a phenolic resole and etherified bis-phenol adduct, wherein said adhesive exhibits rubber tearing bonds between the vulcanizate of said peroxide-cured elastomer and substrate with said adhesive therebetween.
13. An article comprising a peroxide-cured elastomer bonded to a metallic substrate, and as a single adhesive layer between said elastomer and metallic substrate, said adhesive layer is the residue of an aqueous adhesive consisting of 70-80 weight parts of a bonding agent, said bonding agent comprises a phenolic resole, etherified bis-phenol adduct and PVOH dispersion, 10- to 30 wt. parts of halogenated film former and 10-25 wt. parts of zincAl phosphate, and optional pigment and adjuvants.
14. The article of claim 1 wherein said substrate is selected from the group consisting of iron, steel, lead, aluminum, copper, brass, bronze, nickel, zinc, phosphatized steel, and galvanized steel.
15. The article of claim 1 wherein said adhesive further comprises on a dry weight basis dry weight of adhesive 1-3% of an aqueous dispersant, from 2-6% of a precipitated silica, from 10-30% of an acid scavenger, from 10-20% of titanium dioxide, 10-30% of a halogenated polymer film former, and from 50-80% said bonding agent.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A mounting clamp for securing an object to a mounting surface of a structure, comprising:
(a) a rigid flat plate having a multiplicity of apertures to receive fasteners to accommodate attachment of said plate to said structure;
(b) a flange centrally located on a proximal surface of said plate for reception of said object, wherein said flange is flanked by two apertures of a first kind from the multiplicity of apertures, the apertures of a first kind being non-threaded and lying upon a longitudinal centerline of said plate; and
(c) two threaded fasteners of a first kind, each having a head broader than its body, engaging said plate at one of the apertures of a first kind with the head disposed at the proximal surface of said plate.
2. The mounting clamp of claim 1, further comprising two brackets, wherein:
(a) each of said brackets comprises a rigid rectangular channel having a threaded aperture centrally located on a first longer side of the rectangular channel with an opposite longer side of the rectangular channel being open, and the threaded aperture being threadably compatible with the threaded fastener of a first kind; and
(b) each of said brackets is attached to and supported by an instance of the threaded fastener of a first kind in such manner that an end of the threaded fastener of a first kind, opposite the head, threadably engages said bracket with the open side of said bracket facing the distal surface of said plate.
3. The mounting clamp of claim 1, further comprising, from the multiplicity of apertures, at least three apertures of a second kind disposed near the perimeter of said plate and threaded so as to cooperate in threadable engagement with threaded fasteners of a second kind for the purpose of using the threaded fasteners of a second kind to accomplish an adjustable offset between said plate and said mounting surface.
4. The mounting clamp of claim 3 comprising exactly four apertures of a second kind disposed one each near corners of said plate.
5. The mounting clamp of claim 1 further comprising a pad of resilient material disposed between said plate and said mounting surface.
6. The mounting clamp of claim 1 wherein the two threaded fasteners of a first kind are lag screws for threadable insertion into construction materials such as lumber, concrete or gypsum products.
7. The mounting clamp of claim 1 further comprising a pad of weatherproofing gasket material disposed between said plate and said mounting surface.
8. A method of installing a mounting clamp to support an object from a joist of a building,
said joist including a pair of parallel beams having a space therebetween, each of said beams having substantially horizontal upper and lower surfaces; and
said mounting clamp comprising a pair of rigid brackets, a pair of bolts each having a head broader than its body, a rigid mounting plate having a multiplicity of apertures and a mounting flange, wherein:
said mounting flange is attached to said plate near the center of a proximal surface of said plate;
said pair of bolts respectively engage, from the multiplicity of apertures, a pair of apertures of a first kind lying on a longitudinal centerline of said plate flanking said mounting flange, said bolts entering said apertures from the proximal surface of said plate; and
each bracket from the pair of rigid brackets has a rectangular broad shallow inverted U-shape, and central to its broader side each said bracket is threadably engaged respectively by a corresponding one of said pair of bolts such that an open side of said bracket faces a distal surface of said plate;
wherein said method comprises the steps of:
aligning the broader sides of the pair of brackets to be parallel to the longitudinal centerline of said plate of said mounting clamp;
orienting said mounting clamp so that the pair of brackets can be pressed into said space at the lower surface of said joist;
pressing each of said bolts and said brackets into said space until said brackets are completely disposed above the upper surface of said joist;
rotating the head of each of said bolts so as to cause each of said brackets to rotate to a position transverse to said beams;
lowering said mounting clamp to allow said brackets to capture the upper surface of said beams; and
tightening said bolts into said brackets so as to draw said plate toward the lower surface of said beams securing said mounting clamp to said joist.
9. The method of claim 8 wherein, from the multiplicity of apertures, at least three apertures of a second kind are disposed one each near the corners of said plate and threaded for reception of adjustment screws to allow adjustment of said object to a desired orientation, said method further comprising the additional steps of:
threading, from a multiplicity of adjustment screws, one adjustment screw into each of the apertures of a second kind;
loosening said bolts sufficiently to allow said plate to be tilted to achieve the desired orientation of said object;
tightening each of the adjustment screws to make contact with the lower surface of said joist; and
making a final adjustment of said bolts and the adjustment screws to achieve the desired orientation of said object and to stabilize said mounting clamp to said joist.