BR9714696A - Brush monofilament, method of making brush monofilaments, toothbrush and spinner - Google Patents

Brush monofilament, method of making brush monofilaments, toothbrush and spinner

Info

Publication number
BR9714696A
BR9714696A BR9714696A BR9714696A BR9714696A BR 9714696 A BR9714696 A BR 9714696A BR 9714696 A BR9714696 A BR 9714696A BR 9714696 A BR9714696 A BR 9714696A BR 9714696 A BR9714696 A BR 9714696A
Authority
BR
Brazil
Prior art keywords
monofilaments
brush
monofilament
toothbrush
spinner
Prior art date
Application number
BR9714696A
Other languages
Portuguese (pt)
Inventor
Robert L Rackley
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Priority to BR9714696A priority Critical patent/BR9714696A/en
Priority claimed from PCT/US1997/006780 external-priority patent/WO1998048086A1/en
Publication of BR9714696A publication Critical patent/BR9714696A/en

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  • Brushes (AREA)

Abstract

<B>"MONOFILAMENTO DE ESCOVA, MéTODO DE FABRICAçãO DE MONOFILAMENTOS DE ESCOVA, ESCOVA DE DENTES E FIADEIRA"<D>. A presente invenção se refere a monofilamentos com extremidades divididas. Os monofilamentos podem ser empregadas para formar cerdas de escovas de dentes que possuem pontas embandeiradas ou emplumadas. Cada um dos monofilamentos tem uma pluralidade de linhas de fusão internas e pelo menos quatro espaços vazios, sendo que os espaços vazios compreendem entre 5% e 20% da área em seção transversal dos monofilamentos. Preferivelmente, cada um dos monofilamentos tem um diâmetro em uma faixa de 0,00635 a 0,03048 cm (0,0025 a 0,012 polegada), e tem uma configuração hexalocular ou octalocular. Os monofilamentos são fabricados mediante a extrusão de uma pluralidade de correntes poliméricas termoplásticas, a rotação de uma pluralidade de lâminas de corte acima de 1.000 rpm, e a colocação de uma pluralidade de lâminas de corte em contato com as partes de extremidade da pluralidade das correntes poliméricas termoplásticas para formar as extremidades divididas.<B> "BRUSH MONOFILAMENT, BRUSH MONOFILAMENT MANUFACTURING METHOD, TOOTH BRUSH AND BAND" <D>. The present invention relates to monofilaments with split ends. Monofilaments can be used to form toothbrush bristles that have feathered or feathered tips. Each of the monofilaments has a plurality of internal fusion lines and at least four empty spaces, with the empty spaces comprising between 5% and 20% of the area in cross section of the monofilaments. Preferably, each of the monofilaments has a diameter in the range of 0.00635 to 0.03048 cm (0.0025 to 0.012 inch), and has a hexalocular or octalocular configuration. Monofilaments are manufactured by extruding a plurality of thermoplastic polymer chains, rotating a plurality of cutting blades above 1,000 rpm, and placing a plurality of cutting blades in contact with the end parts of the plurality of chains thermoplastic polymeric to form the split ends.

BR9714696A 1997-04-24 1997-04-24 Brush monofilament, method of making brush monofilaments, toothbrush and spinner BR9714696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9714696A BR9714696A (en) 1997-04-24 1997-04-24 Brush monofilament, method of making brush monofilaments, toothbrush and spinner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/US1997/006780 WO1998048086A1 (en) 1997-04-24 1997-04-24 Monofilaments with split ends
BR9714696A BR9714696A (en) 1997-04-24 1997-04-24 Brush monofilament, method of making brush monofilaments, toothbrush and spinner

Publications (1)

Publication Number Publication Date
BR9714696A true BR9714696A (en) 2000-06-27

Family

ID=25664945

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9714696A BR9714696A (en) 1997-04-24 1997-04-24 Brush monofilament, method of making brush monofilaments, toothbrush and spinner

Country Status (1)

Country Link
BR (1) BR9714696A (en)

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/04/1997, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)