http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101997887-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fbf4874a386e5ec3791e8deff47f7048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79b7b3c127cde6d56d97642111ac8237 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cc2b3644736fdeeee67dc6af7df7068 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2111-723 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-522 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-483 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-5098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E04G23-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-4884 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B111-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E04G23-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-50 |
| filingDate | 2018-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a39e171c1d269caa6675ad72b6ea958c |
| publicationDate | 2019-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101997887-B1 |
| titleOfInvention | Mortar containing a polyurethane resin composition and a concrete structure using the same |
| abstract | Disclosure of Invention Technical Problem [10] The present invention relates to a method for coating a polyurethane composition on a deteriorated portion for maintenance of a concrete structure due to deterioration of concrete strength, durability and low load-bearing capacity of a concrete structure such as neutralization, It is advantageous for prevention of salt damage on road facilities due to lack of alkali aggregate reaction. It is also advantageous for sewage treatment plant, wastewater treatment plant, sewage pipe repair, etc. because there is no chemical reaction even with strong acid such as sulfuric acid. It has excellent watertightness and elasticity of elastic resin. It is advantageous for structures that behave like bridges by suppressing impact, vibration absorption and cracking, and is also exposed to moisture, ultraviolet rays and ozone (O 3 ) Completely waterproof when applied to flooring materials such as multi-use facilities such as buildings and public parking lots The current preventing damage to the East, and fundamentally, the steel to ultraviolet light, to provide a strong wear resistance due to weathering polyurethane composition mortar and concrete cross-section and repair the surface protective construction method using the same have the purpose. In order to accomplish the above object, the present invention provides a polyurethane composition mortar comprising a base material, a core material and a top material, wherein the base material comprises a urethane acrylate resin and a polymethyl methacrylate resin in an amount of 10 To 60% by weight of a urethane resin mixture, and 10-30% by weight of a latex resin, the intermediate material being composed of 40 to 60% by weight of sand, calcium sulfoaluminate 10 to 25% by weight of cement, 0.15 to 5% by weight of a fluidizing agent, 0.05 to 5% by weight of a hardening retarder, 0.5 to 10% by weight of an acrylic resin and 2 to 10% by weight of an elastic resin Wherein the topsheet material comprises at least one of monomeric diphenylmethane diisocyanate, modified diphenylmethane diisocyanate, and polymeric diphenylmethane diisocyanate 35 to 55% by weight of a polyoxyalkylene glycol containing polyoxypropylene glycol having a molecular weight of 400 to 3,000, 35 to 55% by weight of an aromatic diisocyanate, at least one of dioctyl phthalate and propylene carbonate By weight of a plasticizer; A polyol having at least one of functional groups 2 to 3, a molecular weight of 200 to 5000, a polyoxypropylene glycol having a hydroxyl value of 20 to 300 and a functional group 3, a molecular weight of 400 to 5000, and a hydroxyl group of 40 to 700; %; And 15 to 35% by weight of a chain extender composed of at least one of 4,4'-methylene bis (2-chloroaniline), diethyltoluene diamine and benzene amine, and a polyester polyol comprising methylpropane diol or tetramethylene glycol. Wherein the weight ratio of the isocyanate prepolymer to the curing agent mixture is 1: 1. According to another aspect of the present invention, there is provided a method for repairing a surface of a concrete structure using a polyurethane composition mortar according to the present invention, comprising the steps of: (1) chipping a deteriorated portion of a concrete structure; Removing the rust of the reinforcing bars of the deteriorated portion (S2); (S 3) washing the rust removal part of the reinforcing bar with high pressure water at a high pressure; Applying a primer to the surface of the deteriorated portion of the high-pressure concrete structure to form a primer layer (S 4); (S 5) filling and applying the background adjustment material on the undercoat layer to form the intermediate layer; And forming a top layer by applying a polyurethane composition to the surface of the intermediate layer in a predetermined thickness and a predetermined shape (S6). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220097607-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102337544-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102464912-B1 |
| priorityDate | 2018-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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