Reflective roof coating having reduced titanium dioxide
US-2024368423-A1 · Nov 7, 2024 · US
US2019203003A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019203003-A1 |
| Application number | US-201816009266-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 15, 2018 |
| Priority date | Jan 3, 2018 |
| Publication date | Jul 4, 2019 |
| Grant date | — |
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wherein m, n, 1, R1, and R2 are as defined in the specification.
Opening claim text (preview).
What is claimed is: 1 . A resin composition, comprising: (A) a halogen-free epoxy resin; (B) a hardener; and (C) a phosphorus-containing phenolic resin of formula (I): in formula (I), n, m and 1 are independently an integer of 0 to 10, with the proviso that at least one of n, m and 1 is not 0; and R 1 and R 2 are independently a residue of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), a residue of DOPO's derivative, a residue of amino triazine novolac (ATN) resin, or —O(CH 2 ) 3 CH 3 , with the proviso that at least one of R 1 and R 2 is a residue of DOPO or a residue of DOPO's derivative . 2 . The resin composition of claim 1 , wherein in formula (I), R 1 and R 2 are independently a residue of DOPO, a residue of or —O(CH 2 ) 3 CH 3 , with the proviso that at least one of R 1 and R 2 is a residue of DOPO. 3 . The resin composition of claim 1 , wherein the hardener is selected from the group consisting of diaminodiphenyl sulfone (DDS), amino triazine novolac resin (ATN), bismaleimide resin (BMI), polyfunctional maleimide resin, styrene maleic anhydride (SMA), benzoxazine resin, and combinations thereof. 4 . The resin composition of claim 1 , wherein the weight ratio of the hardener (B) to the phosphorus-containing phenolic resin (C) is from about 0.2:1 to about 3:1. 5 . The resin composition of claim 4 , wherein the weight ratio of the hardener (B) to the phosphorus-containing phenolic resin (C) is from about 0.3:1 to about 1.5:1. 6 . The resin composition of claim 1 , wherein based on 100 parts by weight of the halogen-free epoxy resin (A), the amount of the hardener (B) is about 5 parts by weight to about 60 parts by weight and the amount of the phosphorus-containing phenolic resin (C) is about 10 parts by weight to about 50 parts by weight. 7 . The resin composition of claim 1 , further comprising a co-hardener selected from the group consisting of dicyandiamide (DICY), cyanate ester resin, phenolic resin (PN) other than the phosphorus-containing phenolic resin (C), diaminodiphenylmethane, poly(styrene-co-vinyl phenol), and combinations thereof. 8 . The resin composition of claim 2 , further comprising a co-hardener selected from the group consisting of dicyandiamide (DICY), cyanate ester resin, phenolic resin (PN) other than the phosphorus-containing phenolic resin (C), diaminodiphenylmethane, poly(styrene-co-vinyl phenol), and combinations thereof. 9 . The resin composition of claim 3 , further comprising a co-hardener selected from the group consisting of dicyandiamide (DICY), cyanate ester resin, phenolic resin (PN) other than the phosphorus-containing phenolic resin (C), diaminodiphenylmethane, poly(styrene-co-vinyl phenol), and combinations thereof. 10 . The resin composition of claim 4 , further comprising a co-hardener selected from the group consisting of dicyandiamide (DICY), cyanate ester resin, phenolic resin (PN) other than the phosphorus-containing phenolic resin (C), diaminodiphenylmethane, poly(styrene-co-vinyl phenol), and combinations thereof. 11 . The resin composition of claim 1 , further comprising a core/shell rubber. 12 . The resin composition of claim 2 , further comprising a core/shell rubber. 13 . The resin composition of claim 3 , further comprising a core/shell rubber. 14 . The resin composition of claim 1 , further comprising a component selected from the group consisting of a filler, a flame retardant, a catalyst, a dispersant agent, a toughener, and combinations thereof. 15 . The resin composition of claim 14 , wherein the filler is selected from the group consisting of silicon dioxide, aluminum oxide, magnesium oxide, magnesium hydroxide, calcium carbonate, talc, clay, aluminum nitride, boron nitride, aluminum hydroxide, silicon aluminum carbide, silicon carbide, sodium carbonate, titanium dioxide, zinc oxide, zirconium oxide, quartzes, diamonds, diamond-like, graphite, calcined kaolin, pryan, mica, hydrotalcite, polytetrafluoroethylene (PTFE) powders, glass beads, ceramic whiskers, carbon nanotubes, nanosized inorganic powders, and combinations thereof. 16 . A prepreg, which is prepared by impregnating a substrate with the resin composition of claim 1 or by coating the resin composition of claim 1 onto a substrate and drying the impregnated or coated substrate. 17 . A metal-clad laminate, which is prepared by laminating the prepreg of claim 16 and a metal foil. 18 . A printed circuit board, which is prepared from the metal-clad laminate of claim 17 . 19 . A metal-clad laminate, which is prepared by coating the resin composition of claim 1 onto a metal foil and drying the coated metal foil. 20 . A printed circuit board, which is prepared from the metal-clad laminate of claim 19 .
aromatic · CPC title
containing nitrogen · CPC title
Compositions of epoxy resins; Compositions of derivatives of epoxy resins · CPC title
comprising epoxy resins · CPC title
PCBs, i.e. printed circuit boards · CPC title
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