CN107027802A - A kind of cholrempenthrin fumicants - Google Patents

A kind of cholrempenthrin fumicants Download PDF

Info

Publication number
CN107027802A
CN107027802A CN201710340602.5A CN201710340602A CN107027802A CN 107027802 A CN107027802 A CN 107027802A CN 201710340602 A CN201710340602 A CN 201710340602A CN 107027802 A CN107027802 A CN 107027802A
Authority
CN
China
Prior art keywords
fumicants
cholrempenthrin
agent
potassium
compositions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710340602.5A
Other languages
Chinese (zh)
Inventor
郭秦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710340602.5A priority Critical patent/CN107027802A/en
Publication of CN107027802A publication Critical patent/CN107027802A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N53/00Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/18Vapour or smoke emitting compositions with delayed or sustained release

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

A kind of cholrempenthrin fumicants, it is characterised in that by weight containing 0.1~70% cholrempenthrin, remaining is agriculturally acceptable heat supply agent.Described heat supply agent, by for prepare fumicants, agriculturally acceptable fuel, oxidant and auxiliary agent constitute, described oxidant is potassium chlorate, ammonium nitrate, potassium nitrate, sodium nitrate, natrium nitrosum, potassium hyperchlorate, the one or more of potassium permanganate.Described fuel is one or more compositions of corncob, cow dung end, stalk, bagasse, wood powder, charcoal, white sugar, starch, sulphur, ammonium thiocyanate, methenamine.Described auxiliary agent is made up of the one or more in smoke agent, pilot agent, fire retardant chemical, cooling agent, heavy weight additive, adhesive, anti-blushing agent, stabilizer.The activity of product medicament of the present invention can be strengthened, and improve its attachment, infiltration, solvability, given full play to it and tagged, suppress the comprehensive organism efficiency such as breathing;Fumicants disappears, and fast, residual quantity is low, and the pollution to environment is small, using fumicants dispenser without any equipment and apparatus, and saving of labor is laborsaving, can the effectively save energy, reduction peasant's drug cost.

Description

A kind of cholrempenthrin fumicants
Technical field
The invention belongs to pesticide field, specifically related to a kind of cholrempenthrin fumicants.
Background technology
Cholrempenthrin, Chinese:Cholrempenthrin, english common name:Chlorempenthrin, CA registration number: 54407-47-5, chemical name:The amyl- 2- alkenyls of 1- acetenyl -2- methyl-(RS) -2,2- dimethyl -3- (2,2- dichloroethylene Base) cyclopropanecarboxylcompound, molecular formula:C16H20O2Cl2, molecular mass(Based on international relative atomic mass in 2012):315, knot Structure formula is:
Cholrempenthrin is a kind of efficient, new pyrethroid insecticides of low toxicity, is had preferably to mosquito, fly, blattaria Effect.It is fast with speed the characteristics of vapour pressure is high, volatility is good, killing power is strong, is knocked down to insect, especially when spraying and being stifling Down effect it is more notable.
Active ingredient is disperseed to be formed the dispersion with huge surface area and surface energy, the work of medicament by fumicants after lighting Performance accesses enhancing, gives full play to it and tags, suppresses the comprehensive organism efficiency such as breathing;And it is fast to disappear, residual quantity is low.Use Fumicants does not need water source and special apparatus, and method is simple, easy to carry, saving of work and time.With China's Greenhouse area not It is disconnected to increase, fumicants because its own it is efficient, time saving and energy saving, application method is simple the features such as developed rapidly.
Pesticide smoke using cholrempenthrin as active ingredient there is no report and application at present.
The content of the invention
It is an object of the invention to provide the pesticide smoke using cholrempenthrin as active ingredient.
To reach that goal of the invention the technical solution adopted by the present invention is:
A kind of cholrempenthrin fumicants, it is characterised in that by weight containing 0.1~70% cholrempenthrin, remaining is agricultural Upper acceptable heat supply agent.
Above-mentioned fumicants, is preferably to contain 1~40% cholrempenthrin by weight, and remaining is supplied to be agriculturally acceptable Thermit powder.
Above-mentioned fumicants, particularly preferably contains 2~30% cholrempenthrins by weight, and remaining is agriculturally acceptable Heat supply agent.
Heat supply agent of the present invention, is by for preparing fumicants, agriculturally acceptable fuel, oxidant and auxiliary agent Composition, wherein oxidant 10-45%, auxiliary agent 5-30%, fuel 15-35%.
Oxidant of the present invention is potassium chlorate, ammonium nitrate, potassium nitrate, sodium nitrate, natrium nitrosum, potassium hyperchlorate, height The one or more of potassium manganate.
Fuel of the present invention be corncob, cow dung end, stalk, bagasse, wood powder, charcoal, white sugar, starch, sulphur, One or more compositions of ammonium thiocyanate, methenamine.
Auxiliary agent of the present invention be by smoke agent, pilot agent, fire retardant chemical, cooling agent, heavy weight additive, adhesive, anti-blushing agent, One or more compositions in stabilizer.
Described smoke agent is made up of the one or more in ammonium chloride, naphthalene, anthracene, carbon trichloride, hexachlorobenzene;
Described pilot agent is made up of the one or more of thiocarbamide, thiourea dioxide, white sugar, ammonium thiocyanate;
Described fire retardant chemical is by carbonate such as sodium carbonate and sodium acid carbonate, ammonium chloride etc. and clay, talcum, lime stone, sulphur One or more compositions of sour calcium;
Described cooling agent is made up of the one or more of ammonium chloride, diatomite, bentonite, talcum;
Described heavy weight additive is by salicylic acid, paranitrophenol, iodoform, sulphur, mercuric sulphide and metal halide such as iron chloride, chlorination One or more compositions of zinc and stannic chloride;
Described adhesive is by carboxymethyl cellulose, phenolic resin, shellac, calcium resinate, paraffin, pitch, dextrin and gypsum One or more compositions;
Described anti-blushing agent is made up of the one or more of mineral oil, high boiling aromatic hydrocarbons and wax class;
Described stabilizer is made up of ammonium chloride, kaolinic one or more.
Cholrempenthrin fumicants of the present invention can be made variously-shaped fumicants, such as pulvis, bar-shaped, sheet, Grain or cylindric fumicants.
Cholrempenthrin fumicants of the present invention is mainly used in the vinyl houses such as planting vegetable, flowers, nursery stock, greenhouse Protecting field and fruit-bearing forest area etc. suitably use the place of fumicants.
Cholrempenthrin fumicants of the present invention is compared with the other formulation agricultural chemicals of existing cholrempenthrin with following excellent Gesture:
(1)Product can be strengthened the system of active ingredient formation high degree of dispersion, the activity of medicament after lighting, and improve it Attachment, infiltration, solvability, give full play to it and tag, suppress the comprehensive organism efficiency such as breathing;
(2)Fumicants disappears, and fast, residual quantity is low, and the pollution to environment is small;
(3)Using fumicants dispenser without any equipment and apparatus, saving of labor is laborsaving, can the effectively save energy, reduce peasant's medication into This.
Embodiment
The present invention is further described with reference to specific embodiment, but does not limit the invention to these tools Body embodiment.One skilled in the art would recognize that present invention encompasses potentially included in Claims scope All alternatives, improvement project and equivalents.
Embodiment 1
A kind of cholrempenthrin fumicants, it is characterised in that by weight containing 20% cholrempenthrin, remaining is heat supply agent, is supplied Thermit powder by weight ratio be 40% oxidant, 30% auxiliary agent, 30% fuel composition,
Oxidant be by for potassium chlorate, ammonium nitrate, potassium nitrate, sodium nitrate, natrium nitrosum, potassium hyperchlorate, potassium permanganate one kind Or a variety of any mixing compositions, described fuel is corncob, cow dung end, stalk, bagasse, wood powder, charcoal, white sugar, starch, Sulphur, ammonium thiocyanate, one or more compositions of methenamine.
Auxiliary agent is by one in smoke agent, pilot agent, fire retardant chemical, cooling agent, heavy weight additive, adhesive, anti-blushing agent, stabilizer Plant or a variety of compositions.
Described smoke agent is made up of the one or more in ammonium chloride, naphthalene, anthracene, carbon trichloride, hexachlorobenzene;
Described pilot agent is made up of the one or more of thiocarbamide, thiourea dioxide, white sugar, ammonium thiocyanate;
Described fire retardant chemical is by carbonate such as sodium carbonate and sodium acid carbonate, ammonium chloride etc. and clay, talcum, lime stone, sulphur One or more compositions of sour calcium;
Described cooling agent is made up of the one or more of ammonium chloride, diatomite, bentonite, talcum;
Described heavy weight additive is by salicylic acid, paranitrophenol, iodoform, sulphur, mercuric sulphide and metal halide such as iron chloride, chlorination One or more compositions of zinc and stannic chloride;
Described adhesive is by carboxymethyl cellulose, phenolic resin, shellac, calcium resinate, paraffin, pitch, dextrin and gypsum One or more compositions;
Described anti-blushing agent is made up of the one or more of mineral oil, high boiling aromatic hydrocarbons and wax class;
Described stabilizer is made up of ammonium chloride, kaolinic one or more.
Experimental comparison
Material prescription selection can suit measures to local conditions in following embodiments, on result without substantial influence.In these embodiments, remove Outside being otherwise noted, all percentages are weight percentage.
Experiment 1:Cholrempenthrin is to Cucumber blightAphis gossypiiIndoor biological determination of activity
The toxicity test result of the cholrempenthrin of table 1 and effective cypermethrin to aphid
As can be seen that reagent agent cholrempenthrin and comparison medicament effective cypermethrin are to Cucumber blight from table 1 LC50Value is respectively 13.7930,11.8470, LC90Value is respectively 104.1486,97.6090.It can be seen that cholrempenthrin is to Huang The activity of melon aphid worm is slightly below effective cypermethrin;Relatively, this shows cucumber aphid to the slope of two medicament virulence regression equations Worm is suitable to cholrempenthrin and effective cypermethrin sensitiveness.
Experiment 2:10% cholrempenthrin fumicants
By 10% cholrempenthrin, 40% ammonium nitrate, 8% ammonium chloride, 42% wood powder, metering respectively is crushed, stirs, be made 10% Cholrempenthrin fumicants.
The products application of the experiment 2 is in preventing and treating cucumber(Protecting field)AphidAphis gossypii
Seted off by 10% cholrempenthrin fumicants in Cucumber blight generation phase point after cigarette medicine 1 day, 3 days, 7 days for 200-300 grams/acre Preventive effect the results are shown in Table 2:
The result of the test of the cholrempenthrin soot foil technique dependent territory cucumber aphid of table 2 10%
From table 2 it can be seen that 10% cholrempenthrin fumicants increases with dosage the prevention effect of cucumber protecting field aphid, supply Preventive effect after the processing 1 day of three various doses of reagent agent is respectively 82.44%, 86.37%, 92.14%;Preventive effect after handling 3 days Respectively 87.81%, 90.68%, 95.82%;Preventive effect after handling 7 days is respectively 88.65%, 91.11%, 96.58%.Control 10% Imidacloprid wettable powder(Formulation rate is 30 grams/acre)1 after medicine, the preventive effect of 3,7 days be respectively 87.56%, 93.17%, 93.78%.10% cholrempenthrin fumicants preventive effect middle dosage is suitable with control, and high dose preventive effect is better than control, 10% cholrempenthrin Fumicants insecticide-applying way is more easy.
Experiment 3:10% cholrempenthrin fumicants is to cucumber safety evaluatio laboratory test
200-300 grams/acre of preparation consumption, the maximum dose level recommended with crop field are recommended according to 10% cholrempenthrin fumicants For minimum test dose, if recommending the 1 of highest amount of formulation, 2,4 times of three dosage, be set to 300 grams/acre, 600 grams/acre, 1200 grams/acre, experiment is used as blank control not do fumicants processing.Result of the test is shown in Table 3.
Influence of the cholrempenthrin fumicants of table 3 10% to cucumber growth
As seen from the experiment, No. 48 excellent to Tianjin of the 10% cholrempenthrin fumicants processing of various dose, De Ruite D21, winter are auspicious The cucumber plant of 1109 3 kinds has no significant effect, and leaf color and blank control indifference, plant type are compact, growth do not occur abnormal The phenomenon of shape, serious fallen flowers, the cucumber growth for testing each processing is normal.Three treated cucumber of 10% cholrempenthrin fumicants Kind upgrowth situation no significant difference, 200-300 grams/acre of recommended dose is used in field to cucumber safety.
Embodiment 4:30% cholrempenthrin fumicants
By 30% cholrempenthrin, 40% ammonium nitrate, 30% wood powder measures crushing, stirred respectively, and 30% cholrempenthrin is made Fumicants.
Listed above is only the specific embodiment of the present invention, it is clear that the embodiment the invention is not restricted to more than.This area The those of ordinary skill's all deformations that directly can export or associate from present disclosure, all should belong to the present invention's Protection domain.

Claims (9)

1. a kind of cholrempenthrin fumicants, it is characterised in that:It is to contain 0.1~70% cholrempenthrin by weight, remaining For agriculturally acceptable heat supply agent.
2. a kind of cholrempenthrin fumicants according to claim 1, it is characterised in that:It is by weight containing 1~ 40% cholrempenthrin, remaining is agriculturally acceptable heat supply agent.
3. a kind of cholrempenthrin fumicants according to claim 1, it is characterised in that:It is to contain 2~30% by weight Cholrempenthrin, remaining is agriculturally acceptable heat supply agent.
4. a kind of cholrempenthrin fumicants according to claim 1, it is characterised in that:Described heat supply agent, be by for Prepare fumicants, agriculturally acceptable fuel, oxidant and auxiliary agent composition, wherein oxidant 10-45%, auxiliary agent 5-30%, combustion Expect 15-35%.
5. a kind of cholrempenthrin fumicants according to claim 4, it is characterised in that:Described oxidant be potassium chlorate, Ammonium nitrate, potassium nitrate, sodium nitrate, natrium nitrosum, potassium hyperchlorate, the one or more of potassium permanganate.
6. a kind of cholrempenthrin fumicants according to claim 4, it is characterised in that:Described fuel is corncob, ox Excrement end, stalk, bagasse, wood powder, charcoal, white sugar, starch, sulphur, ammonium thiocyanate, one or more compositions of methenamine.
7. a kind of cholrempenthrin fumicants according to claim 4, it is characterised in that:Described auxiliary agent be by smoke agent, One or more compositions in pilot agent, fire retardant chemical, cooling agent, heavy weight additive, adhesive, anti-blushing agent, stabilizer;
Described smoke agent is made up of the one or more in ammonium chloride, naphthalene, anthracene, carbon trichloride, hexachlorobenzene;
Described pilot agent is made up of the one or more of thiocarbamide, thiourea dioxide, white sugar, ammonium thiocyanate;
Described fire retardant chemical is by carbonate such as sodium carbonate and sodium acid carbonate, ammonium chloride etc. and clay, talcum, lime stone, sulphur One or more compositions of sour calcium;
Described cooling agent is made up of the one or more of ammonium chloride, diatomite, bentonite, talcum;
Described heavy weight additive is by salicylic acid, paranitrophenol, iodoform, sulphur, mercuric sulphide and metal halide such as iron chloride, chlorination One or more compositions of zinc and stannic chloride;
Described adhesive is by carboxymethyl cellulose, phenolic resin, shellac, calcium resinate, paraffin, pitch, dextrin and gypsum One or more compositions;
Described anti-blushing agent is made up of the one or more of mineral oil, high boiling aromatic hydrocarbons and wax class;
Described stabilizer is made up of ammonium chloride, kaolinic one or more.
8. a kind of cholrempenthrin fumicants according to claim 1 or 2 or 3, it is characterised in that:Described cholrempenthrin Variously-shaped fumicants, such as pulvis, bar-shaped, sheet, particle or cylindric fumicants can be made in fumicants.
9. a kind of cholrempenthrin fumicants according to claim 1 or 2 or 3, it is characterised in that:Described cholrempenthrin Fumicants is mainly used in the vinyl houses such as planting vegetable, flowers, nursery stock, the protecting field in greenhouse and fruit-bearing forest area etc. suitably using fumicants Place.
CN201710340602.5A 2017-05-16 2017-05-16 A kind of cholrempenthrin fumicants Pending CN107027802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710340602.5A CN107027802A (en) 2017-05-16 2017-05-16 A kind of cholrempenthrin fumicants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710340602.5A CN107027802A (en) 2017-05-16 2017-05-16 A kind of cholrempenthrin fumicants

Publications (1)

Publication Number Publication Date
CN107027802A true CN107027802A (en) 2017-08-11

Family

ID=59537746

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710340602.5A Pending CN107027802A (en) 2017-05-16 2017-05-16 A kind of cholrempenthrin fumicants

Country Status (1)

Country Link
CN (1) CN107027802A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108294021A (en) * 2018-02-01 2018-07-20 黑龙江省平山林业制药厂 A kind of nicotine-matrine fumicants and preparation method thereof
CN114903050A (en) * 2021-02-07 2022-08-16 江苏扬农化工股份有限公司 Insecticidal composition containing permethrin and beta-cypermethrin and application thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293897A (en) * 1999-10-30 2001-05-09 刘统军 Composite smoking agent as insecticide
CN101347113A (en) * 2008-09-05 2009-01-21 郭秦 Bactericidal insect-killing aerosol bombs
CN103931649A (en) * 2014-05-05 2014-07-23 北京市农林科学院 Insecticidal composition containing emamectin benzoate and chlorempenthrin
CN105052987A (en) * 2015-08-10 2015-11-18 广西柳州昊邦日化有限公司 Ignition type fly eradication incense
CN105875597A (en) * 2014-11-11 2016-08-24 郭秦 Agricultural smoke agent and preparation method thereof
CN106359442A (en) * 2015-07-23 2017-02-01 郭秦 Compounded smoke agent containing fenpropathrin and pyridaben, and application of the smoke agent

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293897A (en) * 1999-10-30 2001-05-09 刘统军 Composite smoking agent as insecticide
CN101347113A (en) * 2008-09-05 2009-01-21 郭秦 Bactericidal insect-killing aerosol bombs
CN103931649A (en) * 2014-05-05 2014-07-23 北京市农林科学院 Insecticidal composition containing emamectin benzoate and chlorempenthrin
CN105875597A (en) * 2014-11-11 2016-08-24 郭秦 Agricultural smoke agent and preparation method thereof
CN106359442A (en) * 2015-07-23 2017-02-01 郭秦 Compounded smoke agent containing fenpropathrin and pyridaben, and application of the smoke agent
CN105052987A (en) * 2015-08-10 2015-11-18 广西柳州昊邦日化有限公司 Ignition type fly eradication incense

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱洪法: "《环境保护辞典》", 31 December 2009 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108294021A (en) * 2018-02-01 2018-07-20 黑龙江省平山林业制药厂 A kind of nicotine-matrine fumicants and preparation method thereof
CN108294021B (en) * 2018-02-01 2020-11-03 黑龙江省平山林业制药厂 Nicotine-matrine smoking agent and preparation method thereof
CN114903050A (en) * 2021-02-07 2022-08-16 江苏扬农化工股份有限公司 Insecticidal composition containing permethrin and beta-cypermethrin and application thereof
CN114903050B (en) * 2021-02-07 2024-05-28 江苏扬农化工股份有限公司 Insecticidal composition containing permethrin and beta-cypermethrin and application thereof

Similar Documents

Publication Publication Date Title
CN103999865A (en) Bactericidal composition containing cyflufenamid or zoxamide and application thereof
CN104161042B (en) A kind of composition pesticide of fluorine-containing azoles bacterium aniline and methoxy acrylic
CN103329943A (en) Insecticide composition containing natural celastrus angulatus and natural pyrethrin
CN104115845B (en) A kind of high-efficient pesticide composition containing fluorobenzene insect amide
CN107027802A (en) A kind of cholrempenthrin fumicants
CN107549190A (en) Seed treatment composition and its application
CN104430474A (en) Insecticidal composition containing chlorfenapyr and dinotefuran
CN104137836B (en) A kind of bactericidal composition of fluorine-containing azoles bacterium aniline and methoxy acrylic
CN104396961A (en) Suspending agent comprising spirodiclofen
CN107372548A (en) Composition pesticide containing captan and fluorine azoles ring bacterium amine and application thereof
CN102308837A (en) Insecticidal composition
CN103416408B (en) A kind of insect-killing composition containing Fluacrypyrim
CN107306949A (en) A kind of composition pesticide containing DCPTA
CN104115830A (en) Insecticidal composition containing flubendiamide and nereistoxin
CN108651514A (en) A kind of composition pesticide containing fosthiazate and fluxapyroxad
CN1312997C (en) Flumorph and famoxadone sterilization compositions
CN103651565A (en) Leek maggot killing agent
CN104106587A (en) Insecticidal composition containing flubendiamide and carbamate
CN104247709B (en) A kind of bactericidal composition of synergy and application thereof
CN102308834A (en) Pesticidal composition containing flonicamid and hormone compounds
CN103563973A (en) Compound pesticide composition
CN103416430B (en) A kind of composition pesticide
CN104663684A (en) Bactericidal composition containing penflufen and thifluzamide
CN106852338A (en) A kind of Pesticidal combination of the nitrile of worm containing acetyl and clothianidin
CN105409958A (en) Pesticide composition containing cyhalodiamide and fluazinam

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170811

WD01 Invention patent application deemed withdrawn after publication