JPS6383139A - Production of laminated sheet - Google Patents

Production of laminated sheet

Info

Publication number
JPS6383139A
JPS6383139A JP22757486A JP22757486A JPS6383139A JP S6383139 A JPS6383139 A JP S6383139A JP 22757486 A JP22757486 A JP 22757486A JP 22757486 A JP22757486 A JP 22757486A JP S6383139 A JPS6383139 A JP S6383139A
Authority
JP
Japan
Prior art keywords
resin
acid
unsaturated polyester
thermosetting resin
polyester resin
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.)
Granted
Application number
JP22757486A
Other languages
Japanese (ja)
Other versions
JPH0764937B2 (en
Inventor
Yoshihiro Nakamura
中村 ▲吉▼宏
Mitsuo Yokota
横田 光雄
Kenichi Ikeda
謙一 池田
Akinori Hanawa
塙 明徳
Masabumi Yano
矢野 正文
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.)
Resonac Corp
Original Assignee
Hitachi Chemical Co Ltd
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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP61227574A priority Critical patent/JPH0764937B2/en
Publication of JPS6383139A publication Critical patent/JPS6383139A/en
Publication of JPH0764937B2 publication Critical patent/JPH0764937B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0313Organic insulating material
    • H05K1/0353Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement

Landscapes

  • Macromonomer-Based Addition Polymer (AREA)
  • Reinforced Plastic Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a laminated sheet excellent in flame retardancy and punchability, by using a thermosetting resin varnish containing a specified brominated unsaturated polyester resin as a flame retarding plasticizer. CONSTITUTION:Bases are impregnated with a predetermined amount of a thermosetting resin varnish containing a brominated unsaturated polyester resin having at least one double bond in the molecule as a flame-retard plasticizer, and these bases are molded. Said brominated unsaturated polyester can by synthesized from an alpha,beta-unsaturated dibasic acid, a glycol, a bromine compound (e.g., tetrabromophthalic anhydride), a compound (e.g., adipic acid) for increasing flexibility and, optionally, a polybasic acid (e.g., phthalic acid). The bromine content of this polyester resin is preferably 5-40%. As said thermosetting resin, a drying oil-modified phenolic resol resin is desirable.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は難燃性及び打抜加工性に優nる積層板の製造法
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing a laminate having excellent flame retardancy and punching workability.

(従来の技術) 最近の電子機器工業の著しい発展に伴ない、電子機器の
高密度化が進み、安全性の面から、印刷配?fs板用積
層板の難燃性の要求が一段と厳しくなり【おり、米国U
L規格等の法制、規格も整備さnlその規制は強化され
つつある。また、最近、電子機器に使用さnる印刷配線
板は高密度化に伴い、自動実装技術も進歩し、より厳し
い寸法精度が要求さnlこの要求金満たすため低温打抜
加工が行わnる様になっている。
(Prior art) With the recent remarkable development of the electronic equipment industry, the density of electronic equipment has increased, and printing layouts have become increasingly important from the standpoint of safety. The requirements for flame retardancy for laminates for fs boards have become even more stringent.
Legislation and standards such as the L standard have also been developed, and regulations are being strengthened. In addition, as printed wiring boards used in electronic devices have recently become denser, automatic mounting technology has also advanced, and stricter dimensional accuracy is required.In order to meet this requirement, low-temperature punching is being performed. It has become.

従来、打抜加工性を向上させるためには、熱硬化性樹脂
にリン酸エステ/L−類、ポリエーテル類等の可塑剤を
添加したり、fた乾性油類、ポリブタジェン類等の可塑
剤と熱硬化性樹脂の反応により、樹脂の改質かたさnて
いる。
Conventionally, in order to improve punching workability, plasticizers such as phosphate esters/L-types and polyethers were added to thermosetting resins, and plasticizers such as drying oils and polybutadienes were added to thermosetting resins. The modified hardness of the resin is determined by the reaction between the thermosetting resin and the thermosetting resin.

一方、熱硬化性樹脂の難燃化の方法にリン酸エステ/L
−類等のリン系化合物、ブロム化フェノール類、ブロム
化エボキク化曾物、ブロム化ビフェニルエーテル卿等ブ
ロム系化会物、トリアジン化合物等のテラ素糸化合物及
びアンチモン等の無機化合物を単独まy、=に併用して
難燃化する熱硬化性樹脂に添加することに工りなさnて
いる。
On the other hand, phosphoric acid ester/L is used as a method for making thermosetting resin flame retardant.
Phosphorous compounds such as -, brominated phenols, brominated epoxy compounds, brominated biphenyl ethers, terazine compounds such as triazine compounds, and inorganic compounds such as antimony may be used alone. , = is used in combination with thermosetting resins to make them flame retardant.

(発明が解決しようとする問題点) 打抜加工温度の低温化に伴い、更に51塑剤の増量が必
要となる。こnにより、熱硬化性樹脂の架橋密度の低下
が生じ、打抜加工性については打抜穴周囲の月日(パル
ジンの発生や、11it熱性、耐溶剤性の低下か著しい
。かつ難燃性を付与するためには更に多量の難燃剤の添
加か必要となり、打抜加工性、耐熱性、耐溶剤性の劣化
が著しくなる。また、使用する可塑剤と難燃剤との相溶
性の問題か生じ、不均一硬化反応等で特性がばらつく等
、可塑剤量と難燃剤量とのバランスをとること力1難し
い。
(Problems to be Solved by the Invention) As the punching temperature decreases, it becomes necessary to further increase the amount of 51 plasticizer. As a result, the crosslinking density of the thermosetting resin decreases, and the punching processability is affected by the generation of palsine around the punched hole and a significant decrease in heat resistance and solvent resistance. In order to impart this, it is necessary to add a larger amount of flame retardant, resulting in significant deterioration of punching workability, heat resistance, and solvent resistance.Also, there may be a problem with the compatibility between the plasticizer and flame retardant used. It is difficult to maintain a balance between the amount of plasticizer and the amount of flame retardant, as properties may vary due to non-uniform curing reactions.

本発明は、難燃性及び打抜加工性か同時に優nる積層板
の製造法全提供するものである。
The present invention provides a complete method for manufacturing a laminate that is simultaneously superior in flame retardancy and punchability.

(問題点を解決するための手段) 本発明は、1分子中に1個以上の二重結合を有する臭素
含有不飽和ポリエステに樹脂を難燃性可塑剤として配合
した熱硬化性樹脂ワニス七所定量含浸付着させた基材を
成形することを特轍とするものである。
(Means for Solving the Problems) The present invention provides a thermosetting resin varnish in which a bromine-containing unsaturated polyester having one or more double bonds in one molecule is blended with a resin as a flame-retardant plasticizer. This method is characterized by molding a base material that has been impregnated with a fixed amount.

上記に示しに不飽和ポリエステル樹脂とじては、マレイ
ン酸、無水マレイン酸、ツマbg、シトラコン酸、イタ
コン酸等の二重結合全有するα、β不飽和二塩基酸、グ
リコ−AMとしてはエチレングリコール、ジエチレンク
リコール、トリエチレンクリコール、プロピレングリコ
ール、ジプロピレングリコール、フタンシオール、ベン
タンジオール、ヘキテンジオー/−等、A累含有化会物
としては、テトラブロモ無水フタル酸、ジブロモネオペ
ンチルグリコール、トリブロモアリルアルコール、また
はテトラブロモビス2エノーAジグリシジhエーテh等
の臭素含有エポキシ化合物等、可!!!性金増す化せ物
としては、アジピン酸、アゼライン酸、セバシン酸や、
ダイマー酸等の高級脂肪酸等、また必要に応じ、フタル
酸、イソフタル酸、テレフタA−酸、無水フタル酸、ジ
メテルテレアタル酸、ヘキサハイドロフタル酸、ヘキサ
/\イドロ無水7タル酸等の多塩MMを用い、反応温度
80℃〜280℃て会成されろ。
Examples of the unsaturated polyester resins shown above include maleic acid, maleic anhydride, tuma bg, citraconic acid, itaconic acid, etc., α, β unsaturated dibasic acids having all double bonds; and glyco-AM, ethylene glycol. , diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, phthanesiol, bentanediol, hextenediol/-, etc. Examples of A-containing compounds include tetrabromophthalic anhydride, dibromoneopentyl glycol, tribromoallylic alcohol. , or bromine-containing epoxy compounds such as tetrabromobis-2-eno-A diglycidi-ether, etc., are acceptable! ! ! Chemicals that increase sexual value include adipic acid, azelaic acid, sebacic acid,
Higher fatty acids such as dimer acid, and, if necessary, polyesters such as phthalic acid, isophthalic acid, terephthalic anhydride, phthalic anhydride, dimetertereatarate, hexahydrophthalic acid, hexa/\hydroheptalic anhydride, etc. The reaction temperature is 80°C to 280°C using salt MM.

臭素含有不飽和ポリエステル樹脂の臭素含有率は5%へ
40%が好ましく、臭素含有率が高いと可視性が低下す
ることもある。また、臭素含有不瓢和ポリエステル樹脂
の平均分子mは1000へ12000が好fL<、分子
量が大きいはどoT@性は積すか、平均分子! t 7
000以上だと熱硬化性14脂との相だ性か低下するこ
とがある。
The bromine content of the bromine-containing unsaturated polyester resin is preferably 5% to 40%, and a high bromine content may reduce visibility. In addition, the average molecule m of the bromine-containing non-synthetic polyester resin is preferably fL<, 1000 to 12000, and if the molecular weight is large, the average molecule is multiplied! t 7
If it is more than 000, compatibility with thermosetting 14 resin may decrease.

本発明で用いる熱硬化t!Em脂としてはフェノール拉
1月旨、エポキシ樹11旨、メラミン校(脂、ベンゾグ
アナミン樹脂等でるる。
Thermal curing t! used in the present invention! Em resins include phenol resin, epoxy resin, melamine resin, benzoguanamine resin, etc.

特に′PA硬化性樹脂か乾性油変性フェノール系レゾー
ル樹脂であると低温打抜加工性か更に良好となる。乾性
油としてに、桐油、脱水ヒマク油、オイデシカ油等の乾
性油が使用さn1フエノール系のフェノール類としては
フェノール、メタクレゾール、バラクレゾール、オルソ
クレゾール、パライソプロピルフェノール、パラター7
ヤリープチルフエノール、パラインプロベニ3フエノー
ル0)yFリ−fマー、ノニ/L−7エノール、ビスフ
ヱノーAA等が使用される。また、二重結合を有するポ
リエステル樹脂なので乾性油変性フェノール系レゾール
樹脂との相溶性も低下せず、積層板とした時の特性も安
定している。
In particular, if the material is a PA curable resin or a drying oil-modified phenolic resol resin, the low-temperature punching processability will be even better. Drying oils such as tung oil, dehydrated castor oil, and eudesica oil are used as drying oils.N1 phenolic phenols include phenol, metacresol, baracresol, orthocresol, paraisopropylphenol, and parater 7.
Yarybutylphenol, parainprobeni-3phenol 0)yF ly-fmer, noni/L-7 enol, bisphenol AA, etc. are used. Furthermore, since the polyester resin has double bonds, its compatibility with the drying oil-modified phenolic resol resin does not decrease, and the properties when made into a laminate are stable.

本発明の1分子中に1個以上の二重結合を有する臭素含
有不飽和ポリエステル便脂rz熱硬化性樹脂100部(
重M部以下同じ)に対して3へ12Ω部含有さnるが、
好しくは5へ50部が良い。120部以上だと成型した
積層取り層間接着性が低下し、打抜加工で剥離や月日を
生じやすくなる。この臭素含有不飽和ポリエステル樹脂
を含有した熱硬化性樹脂にトルエン、アルコール、メチ
ルエテルケトン、アセトン、ジメチルホルムアミド、ス
チレン等の浴剤を用いて、ワニスとし、紙、ガラスクロ
ス、ガラス不織布、曾成繊維布等熱硬化性樹脂槓層仮の
通常の基材に所定量含浸付層させ、成型して1層板とす
る。
100 parts of the bromine-containing unsaturated polyester stool rz thermosetting resin having one or more double bonds in one molecule of the present invention (
The same applies to heavy M parts and below), but 3 to 12 Ω parts are included,
Preferably 50 to 50 parts is good. If it exceeds 120 parts, the adhesion between the molded laminated layers will decrease, and peeling or aging will easily occur during punching. A thermosetting resin containing this bromine-containing unsaturated polyester resin is mixed with a bath agent such as toluene, alcohol, methyl ether ketone, acetone, dimethyl formamide, or styrene to make a varnish, which can be used to coat paper, glass cloth, glass nonwoven fabric, etc. A thermosetting resin layer such as fiber cloth is impregnated with a predetermined amount on a temporary ordinary base material and molded to form a one-layer board.

成型は兵累含有不飽和ポリエステ/L−v5脂を配合し
た熱硬化性a(脂ワニスを含浸した基材の−枚或は必要
枚数重ね会せ、必要な@度(室温も含む)、必要な圧力
(無圧も含む)で行なわnる。筐た、補助的に難燃剤と
して、トリフェニルホスフェイト、クレジルジフェニル
ホスフェイト、イソプロピル2エニルジフエニルホスフ
エイト等のリン酸エステAFJや、テトラブロモビスフ
ェノールA、ブロム化エポキシ化付物、ブロム化ビフェ
ニルエーテル化合物等のJ!#、素化合物を用いても工
い。
The molding is done by stacking one sheet or the necessary number of sheets of a base material impregnated with a resin-containing unsaturated polyester/L-v5 fat, at the required temperature (including room temperature), and at the required temperature (including room temperature). The process is carried out under appropriate pressure (including no pressure).As an auxiliary flame retardant, phosphoric acid esters such as triphenyl phosphate, cresyl diphenyl phosphate, isopropyl 2-enyl diphenyl phosphate, etc., and tetra J!# and elementary compounds such as bromobisphenol A, brominated epoxidized adducts, and brominated biphenyl ether compounds can also be used.

(作用) 本発明は1分子中に1個以上の二重結−8−を有する臭
素含有不飽和ポリエステル樹脂を難燃性可塑剤として熱
硬化性樹脂に務加し、溶剤で調整する。この時、臭素含
有化合物を有する不飽和ポリエステル樹脂であるため、
難燃性の効果があり、また、長鎖状のポリエステル樹脂
構造を有するため可撓性の効果がある。この臭素含有不
飽和ポリエステル樹脂を配合した熱硬化性樹脂含浸ワニ
ス全紙等の基材に所定量含有付着させこrLを乾燥して
プリプレグとし、必要枚数、加熱加圧成形することによ
り、難燃性及び打抜加工性に優nる積層板が製造できる
(Function) In the present invention, a bromine-containing unsaturated polyester resin having one or more -8- double bonds in one molecule is added to a thermosetting resin as a flame-retardant plasticizer, and adjusted with a solvent. At this time, since it is an unsaturated polyester resin containing a bromine-containing compound,
It has a flame retardant effect, and has a long chain polyester resin structure, so it has a flexible effect. A predetermined amount of thermosetting resin-impregnated varnish containing this bromine-containing unsaturated polyester resin is applied to a base material such as whole paper, dried to form a prepreg, and the required number of sheets is molded under heat and pressure to make it flame retardant. And a laminate with excellent punching workability can be produced.

実施例1゜ 無水マレインr11!490g、テトラブロモ無水フタ
/L−酸696 g、アジピン酸730 g、エチレン
グリコール744gを34反応容器に入n1触媒として
テトラブチルジルコネートを用い、220℃で10時間
反応を続け、臭素貧有$18%の不飽和ポリエステル樹
脂を得た。二重結合は平均1分子3〜4個で、酸価は2
0でめった。
Example 1 490 g of anhydrous maleic R11, 696 g of tetrabromo anhydride/L-acid, 730 g of adipic acid, and 744 g of ethylene glycol were placed in a 34 reaction vessel and reacted at 220°C for 10 hours using tetrabutyl zirconate as the n1 catalyst. This was followed to obtain an unsaturated polyester resin with a bromine content of 18%. The average number of double bonds per molecule is 3 to 4, and the acid value is 2.
I got 0.

フェノール94gと80%パラホルムアルデヒド55g
t−配合し、アルカリ触媒下でレゾール化し、フェノー
ル樹脂會得た。このフェノール樹脂100部(固型分、
重量部以下同じ)に上記に示したポリエステル樹脂30
部、テトラブロモビスフェノールA5m、)リフエール
ホスフェイト30部を配合して含浸用フェノとし、あら
かじめ水溶性メラミン変性フェノ−/L−樹脂で処理(
樹脂付着量19〜23%)した、クラフト基材に上記含
浸用ワニスを樹脂付着量58〜60%になる様に含浸乾
燥させ、このプリプレグ6枚と接着剤付@はくと組み合
せて、加熱加圧積層して、1.6 m1tlの片面鋼張
積層板を得た。
94g of phenol and 55g of 80% paraformaldehyde
T-blending was carried out and resolization was carried out under an alkali catalyst to obtain a phenol resin association. 100 parts of this phenolic resin (solid content,
Polyester resin 30 shown above in parts by weight (same below)
30 parts of Lifair Phosphate (30 parts of Tetrabromobisphenol A, 5m of Tetrabromobisphenol A) was blended to prepare a phenol for impregnation, and the mixture was pretreated with a water-soluble melamine-modified phenol/L-resin (
A craft base material with a resin adhesion of 19 to 23%) was impregnated with the above impregnating varnish to a resin adhesion of 58 to 60% and dried. Six sheets of this prepreg were combined with an adhesive @foil and heated. Pressure lamination was carried out to obtain a single-sided steel-clad laminate of 1.6 ml.

銅張積層板の特性を別表に示す。The characteristics of copper-clad laminates are shown in the attached table.

実施例2゜ 桐油とフェノールを酸性触媒下で反応させ、次に80%
バラホルムアルデヒドとアルカリ触媒下でレゾール化し
た桐油変性1i33%の桐油変性フェノール樹脂100
部に実施例1で曾成したポリエステル樹脂30部、テト
ラブロモビスフエ/−xA5i、)!Jフェニルホス2
エイト30部を配付して含浸用フェノとした。
Example 2゜ Tung oil and phenol are reacted under acidic catalyst, then 80%
Tung oil modified 1i33% tung oil modified phenolic resin 100 resolized under rose formaldehyde and alkaline catalyst
30 parts of the polyester resin prepared in Example 1, tetrabromobisphene/-xA5i, )! J phenylphos 2
Thirty parts of Eight were distributed and used as phenol for impregnation.

以下、実施例1と同様な方法で鋼張積層板を得た。銅張
積層板の特性を別表に示す。
Thereafter, a steel clad laminate was obtained in the same manner as in Example 1. The characteristics of copper-clad laminates are shown in the attached table.

比較例1゜ 実施例1で示したフェノール樹脂100部にテトラブロ
モビスフェノールA14部、トリフェニルホスフェイト
30部を配付して含浸用フェノを得、以下実施例1と同
様な方法で鋼張積層板金得た。鋼張積層板の特性を別表
に示す。
Comparative Example 1゜14 parts of tetrabromobisphenol A and 30 parts of triphenyl phosphate were distributed to 100 parts of the phenolic resin shown in Example 1 to obtain a phenol for impregnation, and then a steel-clad laminate sheet metal was prepared in the same manner as in Example 1. Obtained. The properties of steel clad laminates are shown in the attached table.

比較例2゜ 実施例2で示した桐油変性フェノ−/L−樹脂100部
にテトラブロモビスフェノールA14部、トリフェニル
ホス7エイト30部を配付して含浸用ワニスを得、以下
実施例1と同様な方法で鋼張積層板を得た。銅張積層板
の特性を別表に示す。
Comparative Example 2゜ 14 parts of tetrabromobisphenol A and 30 parts of triphenyl phosphatate were added to 100 parts of the tung oil-modified pheno-/L-resin shown in Example 2 to obtain an impregnating varnish, and the same as in Example 1 was obtained. Steel clad laminates were obtained using this method. The characteristics of copper-clad laminates are shown in the attached table.

比較例五 桐油とフェノールを酸触媒下で反応させ、次に80%パ
ラホルムアルデヒドとアルカリ触媒下でレゾール化した
桐油f性fiA a5%の桐油変性フェノール樹脂10
0部にテトラブロモビスフェノールAI4部、トリフェ
ニルホスフェイト30部を配合して含浸用フェノとした
。以下実施例と同様な方法で銅張槓層取を得た。銅張積
層板の特注を別表に示す。
Comparative Example Tung oil modified phenolic resin with 5% a tung oil f-fiA a 5% a tung oil modified phenolic resin 10 in which tung oil and phenol were reacted under an acid catalyst, and then resolized with 80% paraformaldehyde and an alkali catalyst.
0 parts, 4 parts of tetrabromobisphenol AI and 30 parts of triphenyl phosphate were blended to prepare a phenol for impregnation. Thereafter, a copper clad layer was obtained in the same manner as in the example. Special orders for copper-clad laminates are shown in the attached table.

(発明の効果) 本発明に於ては、1分子に1個以上の二重結合を有する
臭素含有不飽和ポリエステル樹脂を難燃性可塑剤として
熱硬化性樹脂に用いることにより、難燃性、打抜加工性
、耐熱法、耐溶剤性に優nる積膚板を製造することがで
きる。
(Effects of the Invention) In the present invention, flame retardant, It is possible to produce a laminated board with excellent punching workability, heat resistance, and solvent resistance.

Claims (1)

【特許請求の範囲】 1、1分子中に1個以上の二重結合を有する臭素含有不
飽和ポリエステル樹脂を難燃性可塑剤として配合した熱
硬化性樹脂ワニスを所定量含浸付着させた基材を成形す
ることを特徴とする積層板の製造法。 2、熱硬化性樹脂が乾性油変性フェノール系レゾール樹
脂である特許請求範囲第1項記載の積層板の製造法。
[Claims] 1. A base material impregnated with a predetermined amount of a thermosetting resin varnish containing a bromine-containing unsaturated polyester resin having one or more double bonds in each molecule as a flame-retardant plasticizer. A method for manufacturing a laminate, characterized by forming. 2. The method for manufacturing a laminate according to claim 1, wherein the thermosetting resin is a drying oil-modified phenolic resol resin.
JP61227574A 1986-09-26 1986-09-26 Laminated board manufacturing method Expired - Lifetime JPH0764937B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61227574A JPH0764937B2 (en) 1986-09-26 1986-09-26 Laminated board manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61227574A JPH0764937B2 (en) 1986-09-26 1986-09-26 Laminated board manufacturing method

Publications (2)

Publication Number Publication Date
JPS6383139A true JPS6383139A (en) 1988-04-13
JPH0764937B2 JPH0764937B2 (en) 1995-07-12

Family

ID=16863046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61227574A Expired - Lifetime JPH0764937B2 (en) 1986-09-26 1986-09-26 Laminated board manufacturing method

Country Status (1)

Country Link
JP (1) JPH0764937B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228356A (en) * 1989-03-01 1990-09-11 Daihachi Chem Ind Co Ltd Flame-retardant resin composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577187A (en) * 1980-06-16 1982-01-14 Kanegafuchi Chemical Ind Flame resistant electric laminated board

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577187A (en) * 1980-06-16 1982-01-14 Kanegafuchi Chemical Ind Flame resistant electric laminated board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228356A (en) * 1989-03-01 1990-09-11 Daihachi Chem Ind Co Ltd Flame-retardant resin composition

Also Published As

Publication number Publication date
JPH0764937B2 (en) 1995-07-12

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