http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103333645-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_51fc333ba6931aef1a715fd5992a511a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F118-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F218-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J131-04 |
| filingDate | 2013-06-25^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-03-18^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57e25c26d076e029ce37c621de4e8f43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a58f244b23e40419251d6fba7bfcc19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d463c0b951b610d75137044500a14a10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c56d75c61353e24cb78759ba2741ac3d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_881bdb7c38f796c81de6089e1f35270c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76d4b61d5ee3b757f55d983d36cb004d |
| publicationDate | 2015-03-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103333645-B |
| titleOfInvention | Formaldehyde-free polyvinyl acetate wood adhesive and preparation method thereof |
| abstract | The invention relates to a formaldehyde-free polyvinyl acetate wood adhesive and a preparation method thereof. The preparation method comprises the following steps: 1. adding sodium lauryl sulfate, non-ionic surfactant and water to one half of a polyvinyl alcohol solution, dropwisely adding vinyl acetate, dropwisely adding an ammonium persulfate solution, heating, stirring, keeping the temperature, and adding a right amount of 10-30 wt% sodium bicarbonate solution to regulate the pH value to 5.0-6.0, thereby obtaining a polymerization emulsion for later use; and 2. compounding: adding starch and the other half of polyvinyl alcohol solution into water, cooling when the starch is completely aged, adding the polymerization emulsion, stirring, adding acetyl tributyl citrate, mineral oil and hydrogel, stirring uniformly, filtering at 40 DEG C, and discharging. The product provided by the invention is a white uniform emulsion of which the viscosity number can be greater than 14000 mPa.S and the pH value is 4-6. The product provided by the invention has the characteristics of high curing speed, high initial bonding power, high continuous bonding strength, mold resistance, aging resistance and favorable adaptability to machines, and is practical and convenient for construction. |
| priorityDate | 2013-06-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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